Nuke the sandbox

24 files changed, 0 insertions, 6360 deletions

diff --git a/security/sandbox/chromium/base/strings/nullable_string16.cc b/security/sandbox/chromium/base/strings/nullable_string16.cc
deleted file mode 100644
index 07f81d433..000000000
--- a/security/sandbox/chromium/base/strings/nullable_string16.cc
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/strings/nullable_string16.h"
-
-#include <ostream>
-
-#include "base/strings/utf_string_conversions.h"
-
-namespace base {
-
-std::ostream& operator<<(std::ostream& out, const NullableString16& value) {
-  return value.is_null() ? out << "(null)" : out << UTF16ToUTF8(value.string());
-}
-
-}  // namespace base
diff --git a/security/sandbox/chromium/base/strings/nullable_string16.h b/security/sandbox/chromium/base/strings/nullable_string16.h
deleted file mode 100644
index 016c25c25..000000000
--- a/security/sandbox/chromium/base/strings/nullable_string16.h
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BASE_STRINGS_NULLABLE_STRING16_H_
-#define BASE_STRINGS_NULLABLE_STRING16_H_
-
-#include <iosfwd>
-
-#include "base/base_export.h"
-#include "base/strings/string16.h"
-
-namespace base {
-
-// This class is a simple wrapper for string16 which also contains a null
-// state.  This should be used only where the difference between null and
-// empty is meaningful.
-class NullableString16 {
- public:
-  NullableString16() : is_null_(true) { }
-  NullableString16(const string16& string, bool is_null)
-      : string_(string), is_null_(is_null) {
-  }
-
-  const string16& string() const { return string_; }
-  bool is_null() const { return is_null_; }
-
- private:
-  string16 string_;
-  bool is_null_;
-};
-
-inline bool operator==(const NullableString16& a, const NullableString16& b) {
-  return a.is_null() == b.is_null() && a.string() == b.string();
-}
-
-inline bool operator!=(const NullableString16& a, const NullableString16& b) {
-  return !(a == b);
-}
-
-BASE_EXPORT std::ostream& operator<<(std::ostream& out,
-                                     const NullableString16& value);
-
-}  // namespace base
-
-#endif  // BASE_STRINGS_NULLABLE_STRING16_H_
diff --git a/security/sandbox/chromium/base/strings/safe_sprintf.cc b/security/sandbox/chromium/base/strings/safe_sprintf.cc
deleted file mode 100644
index a51c77827..000000000
--- a/security/sandbox/chromium/base/strings/safe_sprintf.cc
+++ /dev/null
@@ -1,686 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/strings/safe_sprintf.h"
-
-#include <errno.h>
-#include <string.h>
-
-#include <limits>
-
-#include "base/macros.h"
-#include "build/build_config.h"
-
-#if !defined(NDEBUG)
-// In debug builds, we use RAW_CHECK() to print useful error messages, if
-// SafeSPrintf() is called with broken arguments.
-// As our contract promises that SafeSPrintf() can be called from any
-// restricted run-time context, it is not actually safe to call logging
-// functions from it; and we only ever do so for debug builds and hope for the
-// best. We should _never_ call any logging function other than RAW_CHECK(),
-// and we should _never_ include any logging code that is active in production
-// builds. Most notably, we should not include these logging functions in
-// unofficial release builds, even though those builds would otherwise have
-// DCHECKS() enabled.
-// In other words; please do not remove the #ifdef around this #include.
-// Instead, in production builds we opt for returning a degraded result,
-// whenever an error is encountered.
-// E.g. The broken function call
-//        SafeSPrintf("errno = %d (%x)", errno, strerror(errno))
-//      will print something like
-//        errno = 13, (%x)
-//      instead of
-//        errno = 13 (Access denied)
-//      In most of the anticipated use cases, that's probably the preferred
-//      behavior.
-#include "base/logging.h"
-#define DEBUG_CHECK RAW_CHECK
-#else
-#define DEBUG_CHECK(x) do { if (x) { } } while (0)
-#endif
-
-namespace base {
-namespace strings {
-
-// The code in this file is extremely careful to be async-signal-safe.
-//
-// Most obviously, we avoid calling any code that could dynamically allocate
-// memory. Doing so would almost certainly result in bugs and dead-locks.
-// We also avoid calling any other STL functions that could have unintended
-// side-effects involving memory allocation or access to other shared
-// resources.
-//
-// But on top of that, we also avoid calling other library functions, as many
-// of them have the side-effect of calling getenv() (in order to deal with
-// localization) or accessing errno. The latter sounds benign, but there are
-// several execution contexts where it isn't even possible to safely read let
-// alone write errno.
-//
-// The stated design goal of the SafeSPrintf() function is that it can be
-// called from any context that can safely call C or C++ code (i.e. anything
-// that doesn't require assembly code).
-//
-// For a brief overview of some but not all of the issues with async-signal-
-// safety, refer to:
-// http://pubs.opengroup.org/onlinepubs/009695399/functions/xsh_chap02_04.html
-
-namespace {
-const size_t kSSizeMaxConst = ((size_t)(ssize_t)-1) >> 1;
-
-const char kUpCaseHexDigits[]   = "0123456789ABCDEF";
-const char kDownCaseHexDigits[] = "0123456789abcdef";
-}
-
-#if defined(NDEBUG)
-// We would like to define kSSizeMax as std::numeric_limits<ssize_t>::max(),
-// but C++ doesn't allow us to do that for constants. Instead, we have to
-// use careful casting and shifting. We later use a static_assert to
-// verify that this worked correctly.
-namespace {
-const size_t kSSizeMax = kSSizeMaxConst;
-}
-#else  // defined(NDEBUG)
-// For efficiency, we really need kSSizeMax to be a constant. But for unit
-// tests, it should be adjustable. This allows us to verify edge cases without
-// having to fill the entire available address space. As a compromise, we make
-// kSSizeMax adjustable in debug builds, and then only compile that particular
-// part of the unit test in debug builds.
-namespace {
-static size_t kSSizeMax = kSSizeMaxConst;
-}
-
-namespace internal {
-void SetSafeSPrintfSSizeMaxForTest(size_t max) {
-  kSSizeMax = max;
-}
-
-size_t GetSafeSPrintfSSizeMaxForTest() {
-  return kSSizeMax;
-}
-}
-#endif  // defined(NDEBUG)
-
-namespace {
-class Buffer {
- public:
-  // |buffer| is caller-allocated storage that SafeSPrintf() writes to. It
-  // has |size| bytes of writable storage. It is the caller's responsibility
-  // to ensure that the buffer is at least one byte in size, so that it fits
-  // the trailing NUL that will be added by the destructor. The buffer also
-  // must be smaller or equal to kSSizeMax in size.
-  Buffer(char* buffer, size_t size)
-      : buffer_(buffer),
-        size_(size - 1),  // Account for trailing NUL byte
-        count_(0) {
-// MSVS2013's standard library doesn't mark max() as constexpr yet. cl.exe
-// supports static_cast but doesn't really implement constexpr yet so it doesn't
-// complain, but clang does.
-#if __cplusplus >= 201103 && !(defined(__clang__) && defined(OS_WIN))
-    static_assert(kSSizeMaxConst ==
-                      static_cast<size_t>(std::numeric_limits<ssize_t>::max()),
-                  "kSSizeMaxConst should be the max value of an ssize_t");
-#endif
-    DEBUG_CHECK(size > 0);
-    DEBUG_CHECK(size <= kSSizeMax);
-  }
-
-  ~Buffer() {
-    // The code calling the constructor guaranteed that there was enough space
-    // to store a trailing NUL -- and in debug builds, we are actually
-    // verifying this with DEBUG_CHECK()s in the constructor. So, we can
-    // always unconditionally write the NUL byte in the destructor.  We do not
-    // need to adjust the count_, as SafeSPrintf() copies snprintf() in not
-    // including the NUL byte in its return code.
-    *GetInsertionPoint() = '\000';
-  }
-
-  // Returns true, iff the buffer is filled all the way to |kSSizeMax-1|. The
-  // caller can now stop adding more data, as GetCount() has reached its
-  // maximum possible value.
-  inline bool OutOfAddressableSpace() const {
-    return count_ == static_cast<size_t>(kSSizeMax - 1);
-  }
-
-  // Returns the number of bytes that would have been emitted to |buffer_|
-  // if it was sized sufficiently large. This number can be larger than
-  // |size_|, if the caller provided an insufficiently large output buffer.
-  // But it will never be bigger than |kSSizeMax-1|.
-  inline ssize_t GetCount() const {
-    DEBUG_CHECK(count_ < kSSizeMax);
-    return static_cast<ssize_t>(count_);
-  }
-
-  // Emits one |ch| character into the |buffer_| and updates the |count_| of
-  // characters that are currently supposed to be in the buffer.
-  // Returns "false", iff the buffer was already full.
-  // N.B. |count_| increases even if no characters have been written. This is
-  // needed so that GetCount() can return the number of bytes that should
-  // have been allocated for the |buffer_|.
-  inline bool Out(char ch) {
-    if (size_ >= 1 && count_ < size_) {
-      buffer_[count_] = ch;
-      return IncrementCountByOne();
-    }
-    // |count_| still needs to be updated, even if the buffer has been
-    // filled completely. This allows SafeSPrintf() to return the number of
-    // bytes that should have been emitted.
-    IncrementCountByOne();
-    return false;
-  }
-
-  // Inserts |padding|-|len| bytes worth of padding into the |buffer_|.
-  // |count_| will also be incremented by the number of bytes that were meant
-  // to be emitted. The |pad| character is typically either a ' ' space
-  // or a '0' zero, but other non-NUL values are legal.
-  // Returns "false", iff the the |buffer_| filled up (i.e. |count_|
-  // overflowed |size_|) at any time during padding.
-  inline bool Pad(char pad, size_t padding, size_t len) {
-    DEBUG_CHECK(pad);
-    DEBUG_CHECK(padding <= kSSizeMax);
-    for (; padding > len; --padding) {
-      if (!Out(pad)) {
-        if (--padding) {
-          IncrementCount(padding-len);
-        }
-        return false;
-      }
-    }
-    return true;
-  }
-
-  // POSIX doesn't define any async-signal-safe function for converting
-  // an integer to ASCII. Define our own version.
-  //
-  // This also gives us the ability to make the function a little more
-  // powerful and have it deal with |padding|, with truncation, and with
-  // predicting the length of the untruncated output.
-  //
-  // IToASCII() converts an integer |i| to ASCII.
-  //
-  // Unlike similar functions in the standard C library, it never appends a
-  // NUL character. This is left for the caller to do.
-  //
-  // While the function signature takes a signed int64_t, the code decides at
-  // run-time whether to treat the argument as signed (int64_t) or as unsigned
-  // (uint64_t) based on the value of |sign|.
-  //
-  // It supports |base|s 2 through 16. Only a |base| of 10 is allowed to have
-  // a |sign|. Otherwise, |i| is treated as unsigned.
-  //
-  // For bases larger than 10, |upcase| decides whether lower-case or upper-
-  // case letters should be used to designate digits greater than 10.
-  //
-  // Padding can be done with either '0' zeros or ' ' spaces. Padding has to
-  // be positive and will always be applied to the left of the output.
-  //
-  // Prepends a |prefix| to the number (e.g. "0x"). This prefix goes to
-  // the left of |padding|, if |pad| is '0'; and to the right of |padding|
-  // if |pad| is ' '.
-  //
-  // Returns "false", if the |buffer_| overflowed at any time.
-  bool IToASCII(bool sign, bool upcase, int64_t i, int base,
-                char pad, size_t padding, const char* prefix);
-
- private:
-  // Increments |count_| by |inc| unless this would cause |count_| to
-  // overflow |kSSizeMax-1|. Returns "false", iff an overflow was detected;
-  // it then clamps |count_| to |kSSizeMax-1|.
-  inline bool IncrementCount(size_t inc) {
-    // "inc" is either 1 or a "padding" value. Padding is clamped at
-    // run-time to at most kSSizeMax-1. So, we know that "inc" is always in
-    // the range 1..kSSizeMax-1.
-    // This allows us to compute "kSSizeMax - 1 - inc" without incurring any
-    // integer overflows.
-    DEBUG_CHECK(inc <= kSSizeMax - 1);
-    if (count_ > kSSizeMax - 1 - inc) {
-      count_ = kSSizeMax - 1;
-      return false;
-    } else {
-      count_ += inc;
-      return true;
-    }
-  }
-
-  // Convenience method for the common case of incrementing |count_| by one.
-  inline bool IncrementCountByOne() {
-    return IncrementCount(1);
-  }
-
-  // Return the current insertion point into the buffer. This is typically
-  // at |buffer_| + |count_|, but could be before that if truncation
-  // happened. It always points to one byte past the last byte that was
-  // successfully placed into the |buffer_|.
-  inline char* GetInsertionPoint() const {
-    size_t idx = count_;
-    if (idx > size_) {
-      idx = size_;
-    }
-    return buffer_ + idx;
-  }
-
-  // User-provided buffer that will receive the fully formatted output string.
-  char* buffer_;
-
-  // Number of bytes that are available in the buffer excluding the trailing
-  // NUL byte that will be added by the destructor.
-  const size_t size_;
-
-  // Number of bytes that would have been emitted to the buffer, if the buffer
-  // was sufficiently big. This number always excludes the trailing NUL byte
-  // and it is guaranteed to never grow bigger than kSSizeMax-1.
-  size_t count_;
-
-  DISALLOW_COPY_AND_ASSIGN(Buffer);
-};
-
-
-bool Buffer::IToASCII(bool sign, bool upcase, int64_t i, int base,
-                      char pad, size_t padding, const char* prefix) {
-  // Sanity check for parameters. None of these should ever fail, but see
-  // above for the rationale why we can't call CHECK().
-  DEBUG_CHECK(base >= 2);
-  DEBUG_CHECK(base <= 16);
-  DEBUG_CHECK(!sign || base == 10);
-  DEBUG_CHECK(pad == '0' || pad == ' ');
-  DEBUG_CHECK(padding <= kSSizeMax);
-  DEBUG_CHECK(!(sign && prefix && *prefix));
-
-  // Handle negative numbers, if the caller indicated that |i| should be
-  // treated as a signed number; otherwise treat |i| as unsigned (even if the
-  // MSB is set!)
-  // Details are tricky, because of limited data-types, but equivalent pseudo-
-  // code would look like:
-  //   if (sign && i < 0)
-  //     prefix = "-";
-  //   num = abs(i);
-  int minint = 0;
-  uint64_t num;
-  if (sign && i < 0) {
-    prefix = "-";
-
-    // Turn our number positive.
-    if (i == std::numeric_limits<int64_t>::min()) {
-      // The most negative integer needs special treatment.
-      minint = 1;
-      num = static_cast<uint64_t>(-(i + 1));
-    } else {
-      // "Normal" negative numbers are easy.
-      num = static_cast<uint64_t>(-i);
-    }
-  } else {
-    num = static_cast<uint64_t>(i);
-  }
-
-  // If padding with '0' zero, emit the prefix or '-' character now. Otherwise,
-  // make the prefix accessible in reverse order, so that we can later output
-  // it right between padding and the number.
-  // We cannot choose the easier approach of just reversing the number, as that
-  // fails in situations where we need to truncate numbers that have padding
-  // and/or prefixes.
-  const char* reverse_prefix = NULL;
-  if (prefix && *prefix) {
-    if (pad == '0') {
-      while (*prefix) {
-        if (padding) {
-          --padding;
-        }
-        Out(*prefix++);
-      }
-      prefix = NULL;
-    } else {
-      for (reverse_prefix = prefix; *reverse_prefix; ++reverse_prefix) {
-      }
-    }
-  } else
-    prefix = NULL;
-  const size_t prefix_length = reverse_prefix - prefix;
-
-  // Loop until we have converted the entire number. Output at least one
-  // character (i.e. '0').
-  size_t start = count_;
-  size_t discarded = 0;
-  bool started = false;
-  do {
-    // Make sure there is still enough space left in our output buffer.
-    if (count_ >= size_) {
-      if (start < size_) {
-        // It is rare that we need to output a partial number. But if asked
-        // to do so, we will still make sure we output the correct number of
-        // leading digits.
-        // Since we are generating the digits in reverse order, we actually
-        // have to discard digits in the order that we have already emitted
-        // them. This is essentially equivalent to:
-        //   memmove(buffer_ + start, buffer_ + start + 1, size_ - start - 1)
-        for (char* move = buffer_ + start, *end = buffer_ + size_ - 1;
-             move < end;
-             ++move) {
-          *move = move[1];
-        }
-        ++discarded;
-        --count_;
-      } else if (count_ - size_ > 1) {
-        // Need to increment either |count_| or |discarded| to make progress.
-        // The latter is more efficient, as it eventually triggers fast
-        // handling of padding. But we have to ensure we don't accidentally
-        // change the overall state (i.e. switch the state-machine from
-        // discarding to non-discarding). |count_| needs to always stay
-        // bigger than |size_|.
-        --count_;
-        ++discarded;
-      }
-    }
-
-    // Output the next digit and (if necessary) compensate for the most
-    // negative integer needing special treatment. This works because,
-    // no matter the bit width of the integer, the lowest-most decimal
-    // integer always ends in 2, 4, 6, or 8.
-    if (!num && started) {
-      if (reverse_prefix > prefix) {
-        Out(*--reverse_prefix);
-      } else {
-        Out(pad);
-      }
-    } else {
-      started = true;
-      Out((upcase ? kUpCaseHexDigits : kDownCaseHexDigits)[num%base + minint]);
-    }
-
-    minint = 0;
-    num /= base;
-
-    // Add padding, if requested.
-    if (padding > 0) {
-      --padding;
-
-      // Performance optimization for when we are asked to output excessive
-      // padding, but our output buffer is limited in size.  Even if we output
-      // a 64bit number in binary, we would never write more than 64 plus
-      // prefix non-padding characters. So, once this limit has been passed,
-      // any further state change can be computed arithmetically; we know that
-      // by this time, our entire final output consists of padding characters
-      // that have all already been output.
-      if (discarded > 8*sizeof(num) + prefix_length) {
-        IncrementCount(padding);
-        padding = 0;
-      }
-    }
-  } while (num || padding || (reverse_prefix > prefix));
-
-  // Conversion to ASCII actually resulted in the digits being in reverse
-  // order. We can't easily generate them in forward order, as we can't tell
-  // the number of characters needed until we are done converting.
-  // So, now, we reverse the string (except for the possible '-' sign).
-  char* front = buffer_ + start;
-  char* back = GetInsertionPoint();
-  while (--back > front) {
-    char ch = *back;
-    *back = *front;
-    *front++ = ch;
-  }
-
-  IncrementCount(discarded);
-  return !discarded;
-}
-
-}  // anonymous namespace
-
-namespace internal {
-
-ssize_t SafeSNPrintf(char* buf, size_t sz, const char* fmt, const Arg* args,
-                     const size_t max_args) {
-  // Make sure that at least one NUL byte can be written, and that the buffer
-  // never overflows kSSizeMax. Not only does that use up most or all of the
-  // address space, it also would result in a return code that cannot be
-  // represented.
-  if (static_cast<ssize_t>(sz) < 1) {
-    return -1;
-  } else if (sz > kSSizeMax) {
-    sz = kSSizeMax;
-  }
-
-  // Iterate over format string and interpret '%' arguments as they are
-  // encountered.
-  Buffer buffer(buf, sz);
-  size_t padding;
-  char pad;
-  for (unsigned int cur_arg = 0; *fmt && !buffer.OutOfAddressableSpace(); ) {
-    if (*fmt++ == '%') {
-      padding = 0;
-      pad = ' ';
-      char ch = *fmt++;
-    format_character_found:
-      switch (ch) {
-      case '0': case '1': case '2': case '3': case '4':
-      case '5': case '6': case '7': case '8': case '9':
-        // Found a width parameter. Convert to an integer value and store in
-        // "padding". If the leading digit is a zero, change the padding
-        // character from a space ' ' to a zero '0'.
-        pad = ch == '0' ? '0' : ' ';
-        for (;;) {
-          // The maximum allowed padding fills all the available address
-          // space and leaves just enough space to insert the trailing NUL.
-          const size_t max_padding = kSSizeMax - 1;
-          if (padding > max_padding/10 ||
-              10*padding > max_padding - (ch - '0')) {
-            DEBUG_CHECK(padding <= max_padding/10 &&
-                        10*padding <= max_padding - (ch - '0'));
-            // Integer overflow detected. Skip the rest of the width until
-            // we find the format character, then do the normal error handling.
-          padding_overflow:
-            padding = max_padding;
-            while ((ch = *fmt++) >= '0' && ch <= '9') {
-            }
-            if (cur_arg < max_args) {
-              ++cur_arg;
-            }
-            goto fail_to_expand;
-          }
-          padding = 10*padding + ch - '0';
-          if (padding > max_padding) {
-            // This doesn't happen for "sane" values of kSSizeMax. But once
-            // kSSizeMax gets smaller than about 10, our earlier range checks
-            // are incomplete. Unittests do trigger this artificial corner
-            // case.
-            DEBUG_CHECK(padding <= max_padding);
-            goto padding_overflow;
-          }
-          ch = *fmt++;
-          if (ch < '0' || ch > '9') {
-            // Reached the end of the width parameter. This is where the format
-            // character is found.
-            goto format_character_found;
-          }
-        }
-        break;
-      case 'c': {  // Output an ASCII character.
-        // Check that there are arguments left to be inserted.
-        if (cur_arg >= max_args) {
-          DEBUG_CHECK(cur_arg < max_args);
-          goto fail_to_expand;
-        }
-
-        // Check that the argument has the expected type.
-        const Arg& arg = args[cur_arg++];
-        if (arg.type != Arg::INT && arg.type != Arg::UINT) {
-          DEBUG_CHECK(arg.type == Arg::INT || arg.type == Arg::UINT);
-          goto fail_to_expand;
-        }
-
-        // Apply padding, if needed.
-        buffer.Pad(' ', padding, 1);
-
-        // Convert the argument to an ASCII character and output it.
-        char as_char = static_cast<char>(arg.integer.i);
-        if (!as_char) {
-          goto end_of_output_buffer;
-        }
-        buffer.Out(as_char);
-        break; }
-      case 'd':    // Output a possibly signed decimal value.
-      case 'o':    // Output an unsigned octal value.
-      case 'x':    // Output an unsigned hexadecimal value.
-      case 'X':
-      case 'p': {  // Output a pointer value.
-        // Check that there are arguments left to be inserted.
-        if (cur_arg >= max_args) {
-          DEBUG_CHECK(cur_arg < max_args);
-          goto fail_to_expand;
-        }
-
-        const Arg& arg = args[cur_arg++];
-        int64_t i;
-        const char* prefix = NULL;
-        if (ch != 'p') {
-          // Check that the argument has the expected type.
-          if (arg.type != Arg::INT && arg.type != Arg::UINT) {
-            DEBUG_CHECK(arg.type == Arg::INT || arg.type == Arg::UINT);
-            goto fail_to_expand;
-          }
-          i = arg.integer.i;
-
-          if (ch != 'd') {
-            // The Arg() constructor automatically performed sign expansion on
-            // signed parameters. This is great when outputting a %d decimal
-            // number, but can result in unexpected leading 0xFF bytes when
-            // outputting a %x hexadecimal number. Mask bits, if necessary.
-            // We have to do this here, instead of in the Arg() constructor, as
-            // the Arg() constructor cannot tell whether we will output a %d
-            // or a %x. Only the latter should experience masking.
-            if (arg.integer.width < sizeof(int64_t)) {
-              i &= (1LL << (8*arg.integer.width)) - 1;
-            }
-          }
-        } else {
-          // Pointer values require an actual pointer or a string.
-          if (arg.type == Arg::POINTER) {
-            i = reinterpret_cast<uintptr_t>(arg.ptr);
-          } else if (arg.type == Arg::STRING) {
-            i = reinterpret_cast<uintptr_t>(arg.str);
-          } else if (arg.type == Arg::INT &&
-                     arg.integer.width == sizeof(NULL) &&
-                     arg.integer.i == 0) {  // Allow C++'s version of NULL
-            i = 0;
-          } else {
-            DEBUG_CHECK(arg.type == Arg::POINTER || arg.type == Arg::STRING);
-            goto fail_to_expand;
-          }
-
-          // Pointers always include the "0x" prefix.
-          prefix = "0x";
-        }
-
-        // Use IToASCII() to convert to ASCII representation. For decimal
-        // numbers, optionally print a sign. For hexadecimal numbers,
-        // distinguish between upper and lower case. %p addresses are always
-        // printed as upcase. Supports base 8, 10, and 16. Prints padding
-        // and/or prefixes, if so requested.
-        buffer.IToASCII(ch == 'd' && arg.type == Arg::INT,
-                        ch != 'x', i,
-                        ch == 'o' ? 8 : ch == 'd' ? 10 : 16,
-                        pad, padding, prefix);
-        break; }
-      case 's': {
-        // Check that there are arguments left to be inserted.
-        if (cur_arg >= max_args) {
-          DEBUG_CHECK(cur_arg < max_args);
-          goto fail_to_expand;
-        }
-
-        // Check that the argument has the expected type.
-        const Arg& arg = args[cur_arg++];
-        const char *s;
-        if (arg.type == Arg::STRING) {
-          s = arg.str ? arg.str : "<NULL>";
-        } else if (arg.type == Arg::INT && arg.integer.width == sizeof(NULL) &&
-                   arg.integer.i == 0) {  // Allow C++'s version of NULL
-          s = "<NULL>";
-        } else {
-          DEBUG_CHECK(arg.type == Arg::STRING);
-          goto fail_to_expand;
-        }
-
-        // Apply padding, if needed. This requires us to first check the
-        // length of the string that we are outputting.
-        if (padding) {
-          size_t len = 0;
-          for (const char* src = s; *src++; ) {
-            ++len;
-          }
-          buffer.Pad(' ', padding, len);
-        }
-
-        // Printing a string involves nothing more than copying it into the
-        // output buffer and making sure we don't output more bytes than
-        // available space; Out() takes care of doing that.
-        for (const char* src = s; *src; ) {
-          buffer.Out(*src++);
-        }
-        break; }
-      case '%':
-        // Quoted percent '%' character.
-        goto copy_verbatim;
-      fail_to_expand:
-        // C++ gives us tools to do type checking -- something that snprintf()
-        // could never really do. So, whenever we see arguments that don't
-        // match up with the format string, we refuse to output them. But
-        // since we have to be extremely conservative about being async-
-        // signal-safe, we are limited in the type of error handling that we
-        // can do in production builds (in debug builds we can use
-        // DEBUG_CHECK() and hope for the best). So, all we do is pass the
-        // format string unchanged. That should eventually get the user's
-        // attention; and in the meantime, it hopefully doesn't lose too much
-        // data.
-      default:
-        // Unknown or unsupported format character. Just copy verbatim to
-        // output.
-        buffer.Out('%');
-        DEBUG_CHECK(ch);
-        if (!ch) {
-          goto end_of_format_string;
-        }
-        buffer.Out(ch);
-        break;
-      }
-    } else {
-  copy_verbatim:
-    buffer.Out(fmt[-1]);
-    }
-  }
- end_of_format_string:
- end_of_output_buffer:
-  return buffer.GetCount();
-}
-
-}  // namespace internal
-
-ssize_t SafeSNPrintf(char* buf, size_t sz, const char* fmt) {
-  // Make sure that at least one NUL byte can be written, and that the buffer
-  // never overflows kSSizeMax. Not only does that use up most or all of the
-  // address space, it also would result in a return code that cannot be
-  // represented.
-  if (static_cast<ssize_t>(sz) < 1) {
-    return -1;
-  } else if (sz > kSSizeMax) {
-    sz = kSSizeMax;
-  }
-
-  Buffer buffer(buf, sz);
-
-  // In the slow-path, we deal with errors by copying the contents of
-  // "fmt" unexpanded. This means, if there are no arguments passed, the
-  // SafeSPrintf() function always degenerates to a version of strncpy() that
-  // de-duplicates '%' characters.
-  const char* src = fmt;
-  for (; *src; ++src) {
-    buffer.Out(*src);
-    DEBUG_CHECK(src[0] != '%' || src[1] == '%');
-    if (src[0] == '%' && src[1] == '%') {
-      ++src;
-    }
-  }
-  return buffer.GetCount();
-}
-
-}  // namespace strings
-}  // namespace base
diff --git a/security/sandbox/chromium/base/strings/safe_sprintf.h b/security/sandbox/chromium/base/strings/safe_sprintf.h
deleted file mode 100644
index 65524a50c..000000000
--- a/security/sandbox/chromium/base/strings/safe_sprintf.h
+++ /dev/null
@@ -1,246 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BASE_STRINGS_SAFE_SPRINTF_H_
-#define BASE_STRINGS_SAFE_SPRINTF_H_
-
-#include "build/build_config.h"
-
-#include <stddef.h>
-#include <stdint.h>
-#include <stdlib.h>
-
-#if defined(OS_POSIX)
-// For ssize_t
-#include <unistd.h>
-#endif
-
-#include "base/base_export.h"
-
-namespace base {
-namespace strings {
-
-#if defined(_MSC_VER)
-// Define ssize_t inside of our namespace.
-#if defined(_WIN64)
-typedef __int64 ssize_t;
-#else
-typedef long ssize_t;
-#endif
-#endif
-
-// SafeSPrintf() is a type-safe and completely self-contained version of
-// snprintf().
-//
-// SafeSNPrintf() is an alternative function signature that can be used when
-// not dealing with fixed-sized buffers. When possible, SafeSPrintf() should
-// always be used instead of SafeSNPrintf()
-//
-// These functions allow for formatting complicated messages from contexts that
-// require strict async-signal-safety. In fact, it is safe to call them from
-// any low-level execution context, as they are guaranteed to make no library
-// or system calls. It deliberately never touches "errno", either.
-//
-// The only exception to this rule is that in debug builds the code calls
-// RAW_CHECK() to help diagnose problems when the format string does not
-// match the rest of the arguments. In release builds, no CHECK()s are used,
-// and SafeSPrintf() instead returns an output string that expands only
-// those arguments that match their format characters. Mismatched arguments
-// are ignored.
-//
-// The code currently only supports a subset of format characters:
-//   %c, %o, %d, %x, %X, %p, and %s.
-//
-// SafeSPrintf() aims to be as liberal as reasonably possible. Integer-like
-// values of arbitrary width can be passed to all of the format characters
-// that expect integers. Thus, it is explicitly legal to pass an "int" to
-// "%c", and output will automatically look at the LSB only. It is also
-// explicitly legal to pass either signed or unsigned values, and the format
-// characters will automatically interpret the arguments accordingly.
-//
-// It is still not legal to mix-and-match integer-like values with pointer
-// values. For instance, you cannot pass a pointer to %x, nor can you pass an
-// integer to %p.
-//
-// The one exception is "0" zero being accepted by "%p". This works-around
-// the problem of C++ defining NULL as an integer-like value.
-//
-// All format characters take an optional width parameter. This must be a
-// positive integer. For %d, %o, %x, %X and %p, if the width starts with
-// a leading '0', padding is done with '0' instead of ' ' characters.
-//
-// There are a few features of snprintf()-style format strings, that
-// SafeSPrintf() does not support at this time.
-//
-// If an actual user showed up, there is no particularly strong reason they
-// couldn't be added. But that assumes that the trade-offs between complexity
-// and utility are favorable.
-//
-// For example, adding support for negative padding widths, and for %n are all
-// likely to be viewed positively. They are all clearly useful, low-risk, easy
-// to test, don't jeopardize the async-signal-safety of the code, and overall
-// have little impact on other parts of SafeSPrintf() function.
-//
-// On the other hands, adding support for alternate forms, positional
-// arguments, grouping, wide characters, localization or floating point numbers
-// are all unlikely to ever be added.
-//
-// SafeSPrintf() and SafeSNPrintf() mimic the behavior of snprintf() and they
-// return the number of bytes needed to store the untruncated output. This
-// does *not* include the terminating NUL byte.
-//
-// They return -1, iff a fatal error happened. This typically can only happen,
-// if the buffer size is a) negative, or b) zero (i.e. not even the NUL byte
-// can be written). The return value can never be larger than SSIZE_MAX-1.
-// This ensures that the caller can always add one to the signed return code
-// in order to determine the amount of storage that needs to be allocated.
-//
-// While the code supports type checking and while it is generally very careful
-// to avoid printing incorrect values, it tends to be conservative in printing
-// as much as possible, even when given incorrect parameters. Typically, in
-// case of an error, the format string will not be expanded. (i.e. something
-// like SafeSPrintf(buf, "%p %d", 1, 2) results in "%p 2"). See above for
-// the use of RAW_CHECK() in debug builds, though.
-//
-// Basic example:
-//   char buf[20];
-//   base::strings::SafeSPrintf(buf, "The answer: %2d", 42);
-//
-// Example with dynamically sized buffer (async-signal-safe). This code won't
-// work on Visual studio, as it requires dynamically allocating arrays on the
-// stack. Consider picking a smaller value for |kMaxSize| if stack size is
-// limited and known. On the other hand, if the parameters to SafeSNPrintf()
-// are trusted and not controllable by the user, you can consider eliminating
-// the check for |kMaxSize| altogether. The current value of SSIZE_MAX is
-// essentially a no-op that just illustrates how to implement an upper bound:
-//   const size_t kInitialSize = 128;
-//   const size_t kMaxSize = std::numeric_limits<ssize_t>::max();
-//   size_t size = kInitialSize;
-//   for (;;) {
-//     char buf[size];
-//     size = SafeSNPrintf(buf, size, "Error message \"%s\"\n", err) + 1;
-//     if (sizeof(buf) < kMaxSize && size > kMaxSize) {
-//       size = kMaxSize;
-//       continue;
-//     } else if (size > sizeof(buf))
-//       continue;
-//     write(2, buf, size-1);
-//     break;
-//   }
-
-namespace internal {
-// Helpers that use C++ overloading, templates, and specializations to deduce
-// and record type information from function arguments. This allows us to
-// later write a type-safe version of snprintf().
-
-struct Arg {
-  enum Type { INT, UINT, STRING, POINTER };
-
-  // Any integer-like value.
-  Arg(signed char c) : type(INT) {
-    integer.i = c;
-    integer.width = sizeof(char);
-  }
-  Arg(unsigned char c) : type(UINT) {
-    integer.i = c;
-    integer.width = sizeof(char);
-  }
-  Arg(signed short j) : type(INT) {
-    integer.i = j;
-    integer.width = sizeof(short);
-  }
-  Arg(unsigned short j) : type(UINT) {
-    integer.i = j;
-    integer.width = sizeof(short);
-  }
-  Arg(signed int j) : type(INT) {
-    integer.i = j;
-    integer.width = sizeof(int);
-  }
-  Arg(unsigned int j) : type(UINT) {
-    integer.i = j;
-    integer.width = sizeof(int);
-  }
-  Arg(signed long j) : type(INT) {
-    integer.i = j;
-    integer.width = sizeof(long);
-  }
-  Arg(unsigned long j) : type(UINT) {
-    integer.i = j;
-    integer.width = sizeof(long);
-  }
-  Arg(signed long long j) : type(INT) {
-    integer.i = j;
-    integer.width = sizeof(long long);
-  }
-  Arg(unsigned long long j) : type(UINT) {
-    integer.i = j;
-    integer.width = sizeof(long long);
-  }
-
-  // A C-style text string.
-  Arg(const char* s) : str(s), type(STRING) { }
-  Arg(char* s)       : str(s), type(STRING) { }
-
-  // Any pointer value that can be cast to a "void*".
-  template<class T> Arg(T* p) : ptr((void*)p), type(POINTER) { }
-
-  union {
-    // An integer-like value.
-    struct {
-      int64_t       i;
-      unsigned char width;
-    } integer;
-
-    // A C-style text string.
-    const char* str;
-
-    // A pointer to an arbitrary object.
-    const void* ptr;
-  };
-  const enum Type type;
-};
-
-// This is the internal function that performs the actual formatting of
-// an snprintf()-style format string.
-BASE_EXPORT ssize_t SafeSNPrintf(char* buf, size_t sz, const char* fmt,
-                                 const Arg* args, size_t max_args);
-
-#if !defined(NDEBUG)
-// In debug builds, allow unit tests to artificially lower the kSSizeMax
-// constant that is used as a hard upper-bound for all buffers. In normal
-// use, this constant should always be std::numeric_limits<ssize_t>::max().
-BASE_EXPORT void SetSafeSPrintfSSizeMaxForTest(size_t max);
-BASE_EXPORT size_t GetSafeSPrintfSSizeMaxForTest();
-#endif
-
-}  // namespace internal
-
-template<typename... Args>
-ssize_t SafeSNPrintf(char* buf, size_t N, const char* fmt, Args... args) {
-  // Use Arg() object to record type information and then copy arguments to an
-  // array to make it easier to iterate over them.
-  const internal::Arg arg_array[] = { args... };
-  return internal::SafeSNPrintf(buf, N, fmt, arg_array, sizeof...(args));
-}
-
-template<size_t N, typename... Args>
-ssize_t SafeSPrintf(char (&buf)[N], const char* fmt, Args... args) {
-  // Use Arg() object to record type information and then copy arguments to an
-  // array to make it easier to iterate over them.
-  const internal::Arg arg_array[] = { args... };
-  return internal::SafeSNPrintf(buf, N, fmt, arg_array, sizeof...(args));
-}
-
-// Fast-path when we don't actually need to substitute any arguments.
-BASE_EXPORT ssize_t SafeSNPrintf(char* buf, size_t N, const char* fmt);
-template<size_t N>
-inline ssize_t SafeSPrintf(char (&buf)[N], const char* fmt) {
-  return SafeSNPrintf(buf, N, fmt);
-}
-
-}  // namespace strings
-}  // namespace base
-
-#endif  // BASE_STRINGS_SAFE_SPRINTF_H_
diff --git a/security/sandbox/chromium/base/strings/safe_sprintf_unittest.cc b/security/sandbox/chromium/base/strings/safe_sprintf_unittest.cc
deleted file mode 100644
index 931ace8b1..000000000
--- a/security/sandbox/chromium/base/strings/safe_sprintf_unittest.cc
+++ /dev/null
@@ -1,763 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/strings/safe_sprintf.h"
-
-#include <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-
-#include <limits>
-
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "build/build_config.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-// Death tests on Android are currently very flaky. No need to add more flaky
-// tests, as they just make it hard to spot real problems.
-// TODO(markus): See if the restrictions on Android can eventually be lifted.
-#if defined(GTEST_HAS_DEATH_TEST) && !defined(OS_ANDROID)
-#define ALLOW_DEATH_TEST
-#endif
-
-namespace base {
-namespace strings {
-
-TEST(SafeSPrintfTest, Empty) {
-  char buf[2] = { 'X', 'X' };
-
-  // Negative buffer size should always result in an error.
-  EXPECT_EQ(-1, SafeSNPrintf(buf, static_cast<size_t>(-1), ""));
-  EXPECT_EQ('X', buf[0]);
-  EXPECT_EQ('X', buf[1]);
-
-  // Zero buffer size should always result in an error.
-  EXPECT_EQ(-1, SafeSNPrintf(buf, 0, ""));
-  EXPECT_EQ('X', buf[0]);
-  EXPECT_EQ('X', buf[1]);
-
-  // A one-byte buffer should always print a single NUL byte.
-  EXPECT_EQ(0, SafeSNPrintf(buf, 1, ""));
-  EXPECT_EQ(0, buf[0]);
-  EXPECT_EQ('X', buf[1]);
-  buf[0] = 'X';
-
-  // A larger buffer should leave the trailing bytes unchanged.
-  EXPECT_EQ(0, SafeSNPrintf(buf, 2, ""));
-  EXPECT_EQ(0, buf[0]);
-  EXPECT_EQ('X', buf[1]);
-  buf[0] = 'X';
-
-  // The same test using SafeSPrintf() instead of SafeSNPrintf().
-  EXPECT_EQ(0, SafeSPrintf(buf, ""));
-  EXPECT_EQ(0, buf[0]);
-  EXPECT_EQ('X', buf[1]);
-  buf[0] = 'X';
-}
-
-TEST(SafeSPrintfTest, NoArguments) {
-  // Output a text message that doesn't require any substitutions. This
-  // is roughly equivalent to calling strncpy() (but unlike strncpy(), it does
-  // always add a trailing NUL; it always deduplicates '%' characters).
-  static const char text[] = "hello world";
-  char ref[20], buf[20];
-  memset(ref, 'X', sizeof(ref));
-  memcpy(buf, ref, sizeof(buf));
-
-  // A negative buffer size should always result in an error.
-  EXPECT_EQ(-1, SafeSNPrintf(buf, static_cast<size_t>(-1), text));
-  EXPECT_TRUE(!memcmp(buf, ref, sizeof(buf)));
-
-  // Zero buffer size should always result in an error.
-  EXPECT_EQ(-1, SafeSNPrintf(buf, 0, text));
-  EXPECT_TRUE(!memcmp(buf, ref, sizeof(buf)));
-
-  // A one-byte buffer should always print a single NUL byte.
-  EXPECT_EQ(static_cast<ssize_t>(sizeof(text))-1, SafeSNPrintf(buf, 1, text));
-  EXPECT_EQ(0, buf[0]);
-  EXPECT_TRUE(!memcmp(buf+1, ref+1, sizeof(buf)-1));
-  memcpy(buf, ref, sizeof(buf));
-
-  // A larger (but limited) buffer should always leave the trailing bytes
-  // unchanged.
-  EXPECT_EQ(static_cast<ssize_t>(sizeof(text))-1, SafeSNPrintf(buf, 2, text));
-  EXPECT_EQ(text[0], buf[0]);
-  EXPECT_EQ(0, buf[1]);
-  EXPECT_TRUE(!memcmp(buf+2, ref+2, sizeof(buf)-2));
-  memcpy(buf, ref, sizeof(buf));
-
-  // A unrestricted buffer length should always leave the trailing bytes
-  // unchanged.
-  EXPECT_EQ(static_cast<ssize_t>(sizeof(text))-1,
-            SafeSNPrintf(buf, sizeof(buf), text));
-  EXPECT_EQ(std::string(text), std::string(buf));
-  EXPECT_TRUE(!memcmp(buf + sizeof(text), ref + sizeof(text),
-                      sizeof(buf) - sizeof(text)));
-  memcpy(buf, ref, sizeof(buf));
-
-  // The same test using SafeSPrintf() instead of SafeSNPrintf().
-  EXPECT_EQ(static_cast<ssize_t>(sizeof(text))-1, SafeSPrintf(buf, text));
-  EXPECT_EQ(std::string(text), std::string(buf));
-  EXPECT_TRUE(!memcmp(buf + sizeof(text), ref + sizeof(text),
-                      sizeof(buf) - sizeof(text)));
-  memcpy(buf, ref, sizeof(buf));
-
-  // Check for deduplication of '%' percent characters.
-  EXPECT_EQ(1, SafeSPrintf(buf, "%%"));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%%%%"));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%%X"));
-  EXPECT_EQ(3, SafeSPrintf(buf, "%%%%X"));
-#if defined(NDEBUG)
-  EXPECT_EQ(1, SafeSPrintf(buf, "%"));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%%%"));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%X"));
-  EXPECT_EQ(3, SafeSPrintf(buf, "%%%X"));
-#elif defined(ALLOW_DEATH_TEST)
-  EXPECT_DEATH(SafeSPrintf(buf, "%"), "src.1. == '%'");
-  EXPECT_DEATH(SafeSPrintf(buf, "%%%"), "src.1. == '%'");
-  EXPECT_DEATH(SafeSPrintf(buf, "%X"), "src.1. == '%'");
-  EXPECT_DEATH(SafeSPrintf(buf, "%%%X"), "src.1. == '%'");
-#endif
-}
-
-TEST(SafeSPrintfTest, OneArgument) {
-  // Test basic single-argument single-character substitution.
-  const char text[] = "hello world";
-  const char fmt[]  = "hello%cworld";
-  char ref[20], buf[20];
-  memset(ref, 'X', sizeof(buf));
-  memcpy(buf, ref, sizeof(buf));
-
-  // A negative buffer size should always result in an error.
-  EXPECT_EQ(-1, SafeSNPrintf(buf, static_cast<size_t>(-1), fmt, ' '));
-  EXPECT_TRUE(!memcmp(buf, ref, sizeof(buf)));
-
-  // Zero buffer size should always result in an error.
-  EXPECT_EQ(-1, SafeSNPrintf(buf, 0, fmt, ' '));
-  EXPECT_TRUE(!memcmp(buf, ref, sizeof(buf)));
-
-  // A one-byte buffer should always print a single NUL byte.
-  EXPECT_EQ(static_cast<ssize_t>(sizeof(text))-1,
-            SafeSNPrintf(buf, 1, fmt, ' '));
-  EXPECT_EQ(0, buf[0]);
-  EXPECT_TRUE(!memcmp(buf+1, ref+1, sizeof(buf)-1));
-  memcpy(buf, ref, sizeof(buf));
-
-  // A larger (but limited) buffer should always leave the trailing bytes
-  // unchanged.
-  EXPECT_EQ(static_cast<ssize_t>(sizeof(text))-1,
-            SafeSNPrintf(buf, 2, fmt, ' '));
-  EXPECT_EQ(text[0], buf[0]);
-  EXPECT_EQ(0, buf[1]);
-  EXPECT_TRUE(!memcmp(buf+2, ref+2, sizeof(buf)-2));
-  memcpy(buf, ref, sizeof(buf));
-
-  // A unrestricted buffer length should always leave the trailing bytes
-  // unchanged.
-  EXPECT_EQ(static_cast<ssize_t>(sizeof(text))-1,
-            SafeSNPrintf(buf, sizeof(buf), fmt, ' '));
-  EXPECT_EQ(std::string(text), std::string(buf));
-  EXPECT_TRUE(!memcmp(buf + sizeof(text), ref + sizeof(text),
-                      sizeof(buf) - sizeof(text)));
-  memcpy(buf, ref, sizeof(buf));
-
-  // The same test using SafeSPrintf() instead of SafeSNPrintf().
-  EXPECT_EQ(static_cast<ssize_t>(sizeof(text))-1, SafeSPrintf(buf, fmt, ' '));
-  EXPECT_EQ(std::string(text), std::string(buf));
-  EXPECT_TRUE(!memcmp(buf + sizeof(text), ref + sizeof(text),
-                      sizeof(buf) - sizeof(text)));
-  memcpy(buf, ref, sizeof(buf));
-
-  // Check for deduplication of '%' percent characters.
-  EXPECT_EQ(1, SafeSPrintf(buf, "%%", 0));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%%%%", 0));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%Y", 0));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%%Y", 0));
-  EXPECT_EQ(3, SafeSPrintf(buf, "%%%Y", 0));
-  EXPECT_EQ(3, SafeSPrintf(buf, "%%%%Y", 0));
-#if defined(NDEBUG)
-  EXPECT_EQ(1, SafeSPrintf(buf, "%", 0));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%%%", 0));
-#elif defined(ALLOW_DEATH_TEST)
-  EXPECT_DEATH(SafeSPrintf(buf, "%", 0), "ch");
-  EXPECT_DEATH(SafeSPrintf(buf, "%%%", 0), "ch");
-#endif
-}
-
-TEST(SafeSPrintfTest, MissingArg) {
-#if defined(NDEBUG)
-  char buf[20];
-  EXPECT_EQ(3, SafeSPrintf(buf, "%c%c", 'A'));
-  EXPECT_EQ("A%c", std::string(buf));
-#elif defined(ALLOW_DEATH_TEST)
-  char buf[20];
-  EXPECT_DEATH(SafeSPrintf(buf, "%c%c", 'A'), "cur_arg < max_args");
-#endif
-}
-
-TEST(SafeSPrintfTest, ASANFriendlyBufferTest) {
-  // Print into a buffer that is sized exactly to size. ASAN can verify that
-  // nobody attempts to write past the end of the buffer.
-  // There is a more complicated test in PrintLongString() that covers a lot
-  // more edge case, but it is also harder to debug in case of a failure.
-  const char kTestString[] = "This is a test";
-  scoped_ptr<char[]> buf(new char[sizeof(kTestString)]);
-  EXPECT_EQ(static_cast<ssize_t>(sizeof(kTestString) - 1),
-            SafeSNPrintf(buf.get(), sizeof(kTestString), kTestString));
-  EXPECT_EQ(std::string(kTestString), std::string(buf.get()));
-  EXPECT_EQ(static_cast<ssize_t>(sizeof(kTestString) - 1),
-            SafeSNPrintf(buf.get(), sizeof(kTestString), "%s", kTestString));
-  EXPECT_EQ(std::string(kTestString), std::string(buf.get()));
-}
-
-TEST(SafeSPrintfTest, NArgs) {
-  // Pre-C++11 compilers have a different code path, that can only print
-  // up to ten distinct arguments.
-  // We test both SafeSPrintf() and SafeSNPrintf(). This makes sure we don't
-  // have typos in the copy-n-pasted code that is needed to deal with various
-  // numbers of arguments.
-  char buf[12];
-  EXPECT_EQ(1, SafeSPrintf(buf, "%c", 1));
-  EXPECT_EQ("\1", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%c%c", 1, 2));
-  EXPECT_EQ("\1\2", std::string(buf));
-  EXPECT_EQ(3, SafeSPrintf(buf, "%c%c%c", 1, 2, 3));
-  EXPECT_EQ("\1\2\3", std::string(buf));
-  EXPECT_EQ(4, SafeSPrintf(buf, "%c%c%c%c", 1, 2, 3, 4));
-  EXPECT_EQ("\1\2\3\4", std::string(buf));
-  EXPECT_EQ(5, SafeSPrintf(buf, "%c%c%c%c%c", 1, 2, 3, 4, 5));
-  EXPECT_EQ("\1\2\3\4\5", std::string(buf));
-  EXPECT_EQ(6, SafeSPrintf(buf, "%c%c%c%c%c%c", 1, 2, 3, 4, 5, 6));
-  EXPECT_EQ("\1\2\3\4\5\6", std::string(buf));
-  EXPECT_EQ(7, SafeSPrintf(buf, "%c%c%c%c%c%c%c", 1, 2, 3, 4, 5, 6, 7));
-  EXPECT_EQ("\1\2\3\4\5\6\7", std::string(buf));
-  EXPECT_EQ(8, SafeSPrintf(buf, "%c%c%c%c%c%c%c%c", 1, 2, 3, 4, 5, 6, 7, 8));
-  EXPECT_EQ("\1\2\3\4\5\6\7\10", std::string(buf));
-  EXPECT_EQ(9, SafeSPrintf(buf, "%c%c%c%c%c%c%c%c%c",
-                           1, 2, 3, 4, 5, 6, 7, 8, 9));
-  EXPECT_EQ("\1\2\3\4\5\6\7\10\11", std::string(buf));
-  EXPECT_EQ(10, SafeSPrintf(buf, "%c%c%c%c%c%c%c%c%c%c",
-                            1, 2, 3, 4, 5, 6, 7, 8, 9, 10));
-
-  // Repeat all the tests with SafeSNPrintf() instead of SafeSPrintf().
-  EXPECT_EQ("\1\2\3\4\5\6\7\10\11\12", std::string(buf));
-  EXPECT_EQ(1, SafeSNPrintf(buf, 11, "%c", 1));
-  EXPECT_EQ("\1", std::string(buf));
-  EXPECT_EQ(2, SafeSNPrintf(buf, 11, "%c%c", 1, 2));
-  EXPECT_EQ("\1\2", std::string(buf));
-  EXPECT_EQ(3, SafeSNPrintf(buf, 11, "%c%c%c", 1, 2, 3));
-  EXPECT_EQ("\1\2\3", std::string(buf));
-  EXPECT_EQ(4, SafeSNPrintf(buf, 11, "%c%c%c%c", 1, 2, 3, 4));
-  EXPECT_EQ("\1\2\3\4", std::string(buf));
-  EXPECT_EQ(5, SafeSNPrintf(buf, 11, "%c%c%c%c%c", 1, 2, 3, 4, 5));
-  EXPECT_EQ("\1\2\3\4\5", std::string(buf));
-  EXPECT_EQ(6, SafeSNPrintf(buf, 11, "%c%c%c%c%c%c", 1, 2, 3, 4, 5, 6));
-  EXPECT_EQ("\1\2\3\4\5\6", std::string(buf));
-  EXPECT_EQ(7, SafeSNPrintf(buf, 11, "%c%c%c%c%c%c%c", 1, 2, 3, 4, 5, 6, 7));
-  EXPECT_EQ("\1\2\3\4\5\6\7", std::string(buf));
-  EXPECT_EQ(8, SafeSNPrintf(buf, 11, "%c%c%c%c%c%c%c%c",
-                            1, 2, 3, 4, 5, 6, 7, 8));
-  EXPECT_EQ("\1\2\3\4\5\6\7\10", std::string(buf));
-  EXPECT_EQ(9, SafeSNPrintf(buf, 11, "%c%c%c%c%c%c%c%c%c",
-                            1, 2, 3, 4, 5, 6, 7, 8, 9));
-  EXPECT_EQ("\1\2\3\4\5\6\7\10\11", std::string(buf));
-  EXPECT_EQ(10, SafeSNPrintf(buf, 11, "%c%c%c%c%c%c%c%c%c%c",
-                             1, 2, 3, 4, 5, 6, 7, 8, 9, 10));
-  EXPECT_EQ("\1\2\3\4\5\6\7\10\11\12", std::string(buf));
-
-  EXPECT_EQ(11, SafeSPrintf(buf, "%c%c%c%c%c%c%c%c%c%c%c",
-                            1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11));
-  EXPECT_EQ("\1\2\3\4\5\6\7\10\11\12\13", std::string(buf));
-  EXPECT_EQ(11, SafeSNPrintf(buf, 12, "%c%c%c%c%c%c%c%c%c%c%c",
-                             1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11));
-  EXPECT_EQ("\1\2\3\4\5\6\7\10\11\12\13", std::string(buf));
-}
-
-TEST(SafeSPrintfTest, DataTypes) {
-  char buf[40];
-
-  // Bytes
-  EXPECT_EQ(1, SafeSPrintf(buf, "%d", (uint8_t)1));
-  EXPECT_EQ("1", std::string(buf));
-  EXPECT_EQ(3, SafeSPrintf(buf, "%d", (uint8_t)-1));
-  EXPECT_EQ("255", std::string(buf));
-  EXPECT_EQ(1, SafeSPrintf(buf, "%d", (int8_t)1));
-  EXPECT_EQ("1", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%d", (int8_t)-1));
-  EXPECT_EQ("-1", std::string(buf));
-  EXPECT_EQ(4, SafeSPrintf(buf, "%d", (int8_t)-128));
-  EXPECT_EQ("-128", std::string(buf));
-
-  // Half-words
-  EXPECT_EQ(1, SafeSPrintf(buf, "%d", (uint16_t)1));
-  EXPECT_EQ("1", std::string(buf));
-  EXPECT_EQ(5, SafeSPrintf(buf, "%d", (uint16_t)-1));
-  EXPECT_EQ("65535", std::string(buf));
-  EXPECT_EQ(1, SafeSPrintf(buf, "%d", (int16_t)1));
-  EXPECT_EQ("1", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%d", (int16_t)-1));
-  EXPECT_EQ("-1", std::string(buf));
-  EXPECT_EQ(6, SafeSPrintf(buf, "%d", (int16_t)-32768));
-  EXPECT_EQ("-32768", std::string(buf));
-
-  // Words
-  EXPECT_EQ(1, SafeSPrintf(buf, "%d", (uint32_t)1));
-  EXPECT_EQ("1", std::string(buf));
-  EXPECT_EQ(10, SafeSPrintf(buf, "%d", (uint32_t)-1));
-  EXPECT_EQ("4294967295", std::string(buf));
-  EXPECT_EQ(1, SafeSPrintf(buf, "%d", (int32_t)1));
-  EXPECT_EQ("1", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%d", (int32_t)-1));
-  EXPECT_EQ("-1", std::string(buf));
-  // Work-around for an limitation of C90
-  EXPECT_EQ(11, SafeSPrintf(buf, "%d", (int32_t)-2147483647-1));
-  EXPECT_EQ("-2147483648", std::string(buf));
-
-  // Quads
-  EXPECT_EQ(1, SafeSPrintf(buf, "%d", (uint64_t)1));
-  EXPECT_EQ("1", std::string(buf));
-  EXPECT_EQ(20, SafeSPrintf(buf, "%d", (uint64_t)-1));
-  EXPECT_EQ("18446744073709551615", std::string(buf));
-  EXPECT_EQ(1, SafeSPrintf(buf, "%d", (int64_t)1));
-  EXPECT_EQ("1", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%d", (int64_t)-1));
-  EXPECT_EQ("-1", std::string(buf));
-  // Work-around for an limitation of C90
-  EXPECT_EQ(20, SafeSPrintf(buf, "%d", (int64_t)-9223372036854775807LL-1));
-  EXPECT_EQ("-9223372036854775808", std::string(buf));
-
-  // Strings (both const and mutable).
-  EXPECT_EQ(4, SafeSPrintf(buf, "test"));
-  EXPECT_EQ("test", std::string(buf));
-  EXPECT_EQ(4, SafeSPrintf(buf, buf));
-  EXPECT_EQ("test", std::string(buf));
-
-  // Pointer
-  char addr[20];
-  sprintf(addr, "0x%llX", (unsigned long long)(uintptr_t)buf);
-  SafeSPrintf(buf, "%p", buf);
-  EXPECT_EQ(std::string(addr), std::string(buf));
-  SafeSPrintf(buf, "%p", (const char *)buf);
-  EXPECT_EQ(std::string(addr), std::string(buf));
-  sprintf(addr, "0x%llX", (unsigned long long)(uintptr_t)sprintf);
-  SafeSPrintf(buf, "%p", sprintf);
-  EXPECT_EQ(std::string(addr), std::string(buf));
-
-  // Padding for pointers is a little more complicated because of the "0x"
-  // prefix. Padding with '0' zeros is relatively straight-forward, but
-  // padding with ' ' spaces requires more effort.
-  sprintf(addr, "0x%017llX", (unsigned long long)(uintptr_t)buf);
-  SafeSPrintf(buf, "%019p", buf);
-  EXPECT_EQ(std::string(addr), std::string(buf));
-  sprintf(addr, "0x%llX", (unsigned long long)(uintptr_t)buf);
-  memset(addr, ' ',
-         (char*)memmove(addr + sizeof(addr) - strlen(addr) - 1,
-                        addr, strlen(addr)+1) - addr);
-  SafeSPrintf(buf, "%19p", buf);
-  EXPECT_EQ(std::string(addr), std::string(buf));
-}
-
-namespace {
-void PrintLongString(char* buf, size_t sz) {
-  // Output a reasonably complex expression into a limited-size buffer.
-  // At least one byte is available for writing the NUL character.
-  CHECK_GT(sz, static_cast<size_t>(0));
-
-  // Allocate slightly more space, so that we can verify that SafeSPrintf()
-  // never writes past the end of the buffer.
-  scoped_ptr<char[]> tmp(new char[sz+2]);
-  memset(tmp.get(), 'X', sz+2);
-
-  // Use SafeSPrintf() to output a complex list of arguments:
-  // - test padding and truncating %c single characters.
-  // - test truncating %s simple strings.
-  // - test mismatching arguments and truncating (for %d != %s).
-  // - test zero-padding and truncating %x hexadecimal numbers.
-  // - test outputting and truncating %d MININT.
-  // - test outputting and truncating %p arbitrary pointer values.
-  // - test outputting, padding and truncating NULL-pointer %s strings.
-  char* out = tmp.get();
-  size_t out_sz = sz;
-  size_t len;
-  for (scoped_ptr<char[]> perfect_buf;;) {
-    size_t needed = SafeSNPrintf(out, out_sz,
-#if defined(NDEBUG)
-                            "A%2cong %s: %d %010X %d %p%7s", 'l', "string", "",
-#else
-                            "A%2cong %s: %%d %010X %d %p%7s", 'l', "string",
-#endif
-                            0xDEADBEEF, std::numeric_limits<intptr_t>::min(),
-                            PrintLongString, static_cast<char*>(NULL)) + 1;
-
-    // Various sanity checks:
-    // The numbered of characters needed to print the full string should always
-    // be bigger or equal to the bytes that have actually been output.
-    len = strlen(tmp.get());
-    CHECK_GE(needed, len+1);
-
-    // The number of characters output should always fit into the buffer that
-    // was passed into SafeSPrintf().
-    CHECK_LT(len, out_sz);
-
-    // The output is always terminated with a NUL byte (actually, this test is
-    // always going to pass, as strlen() already verified this)
-    EXPECT_FALSE(tmp[len]);
-
-    // ASAN can check that we are not overwriting buffers, iff we make sure the
-    // buffer is exactly the size that we are expecting to be written. After
-    // running SafeSNPrintf() the first time, it is possible to compute the
-    // correct buffer size for this test. So, allocate a second buffer and run
-    // the exact same SafeSNPrintf() command again.
-    if (!perfect_buf.get()) {
-      out_sz = std::min(needed, sz);
-      out = new char[out_sz];
-      perfect_buf.reset(out);
-    } else {
-      break;
-    }
-  }
-
-  // All trailing bytes are unchanged.
-  for (size_t i = len+1; i < sz+2; ++i)
-    EXPECT_EQ('X', tmp[i]);
-
-  // The text that was generated by SafeSPrintf() should always match the
-  // equivalent text generated by sprintf(). Please note that the format
-  // string for sprintf() is not complicated, as it does not have the
-  // benefit of getting type information from the C++ compiler.
-  //
-  // N.B.: It would be so much cleaner to use snprintf(). But unfortunately,
-  //       Visual Studio doesn't support this function, and the work-arounds
-  //       are all really awkward.
-  char ref[256];
-  CHECK_LE(sz, sizeof(ref));
-  sprintf(ref, "A long string: %%d 00DEADBEEF %lld 0x%llX <NULL>",
-          static_cast<long long>(std::numeric_limits<intptr_t>::min()),
-          static_cast<unsigned long long>(
-            reinterpret_cast<uintptr_t>(PrintLongString)));
-  ref[sz-1] = '\000';
-
-#if defined(NDEBUG)
-  const size_t kSSizeMax = std::numeric_limits<ssize_t>::max();
-#else
-  const size_t kSSizeMax = internal::GetSafeSPrintfSSizeMaxForTest();
-#endif
-
-  // Compare the output from SafeSPrintf() to the one from sprintf().
-  EXPECT_EQ(std::string(ref).substr(0, kSSizeMax-1), std::string(tmp.get()));
-
-  // We allocated a slightly larger buffer, so that we could perform some
-  // extra sanity checks. Now that the tests have all passed, we copy the
-  // data to the output buffer that the caller provided.
-  memcpy(buf, tmp.get(), len+1);
-}
-
-#if !defined(NDEBUG)
-class ScopedSafeSPrintfSSizeMaxSetter {
- public:
-  ScopedSafeSPrintfSSizeMaxSetter(size_t sz) {
-    old_ssize_max_ = internal::GetSafeSPrintfSSizeMaxForTest();
-    internal::SetSafeSPrintfSSizeMaxForTest(sz);
-  }
-
-  ~ScopedSafeSPrintfSSizeMaxSetter() {
-    internal::SetSafeSPrintfSSizeMaxForTest(old_ssize_max_);
-  }
-
- private:
-  size_t old_ssize_max_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScopedSafeSPrintfSSizeMaxSetter);
-};
-#endif
-
-}  // anonymous namespace
-
-TEST(SafeSPrintfTest, Truncation) {
-  // We use PrintLongString() to print a complex long string and then
-  // truncate to all possible lengths. This ends up exercising a lot of
-  // different code paths in SafeSPrintf() and IToASCII(), as truncation can
-  // happen in a lot of different states.
-  char ref[256];
-  PrintLongString(ref, sizeof(ref));
-  for (size_t i = strlen(ref)+1; i; --i) {
-    char buf[sizeof(ref)];
-    PrintLongString(buf, i);
-    EXPECT_EQ(std::string(ref, i - 1), std::string(buf));
-  }
-
-  // When compiling in debug mode, we have the ability to fake a small
-  // upper limit for the maximum value that can be stored in an ssize_t.
-  // SafeSPrintf() uses this upper limit to determine how many bytes it will
-  // write to the buffer, even if the caller claimed a bigger buffer size.
-  // Repeat the truncation test and verify that this other code path in
-  // SafeSPrintf() works correctly, too.
-#if !defined(NDEBUG)
-  for (size_t i = strlen(ref)+1; i > 1; --i) {
-    ScopedSafeSPrintfSSizeMaxSetter ssize_max_setter(i);
-    char buf[sizeof(ref)];
-    PrintLongString(buf, sizeof(buf));
-    EXPECT_EQ(std::string(ref, i - 1), std::string(buf));
-  }
-
-  // kSSizeMax is also used to constrain the maximum amount of padding, before
-  // SafeSPrintf() detects an error in the format string.
-  ScopedSafeSPrintfSSizeMaxSetter ssize_max_setter(100);
-  char buf[256];
-  EXPECT_EQ(99, SafeSPrintf(buf, "%99c", ' '));
-  EXPECT_EQ(std::string(99, ' '), std::string(buf));
-  *buf = '\000';
-#if defined(ALLOW_DEATH_TEST)
-  EXPECT_DEATH(SafeSPrintf(buf, "%100c", ' '), "padding <= max_padding");
-#endif
-  EXPECT_EQ(0, *buf);
-#endif
-}
-
-TEST(SafeSPrintfTest, Padding) {
-  char buf[40], fmt[40];
-
-  // Chars %c
-  EXPECT_EQ(1, SafeSPrintf(buf, "%c", 'A'));
-  EXPECT_EQ("A", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%2c", 'A'));
-  EXPECT_EQ(" A", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%02c", 'A'));
-  EXPECT_EQ(" A", std::string(buf));
-  EXPECT_EQ(4, SafeSPrintf(buf, "%-2c", 'A'));
-  EXPECT_EQ("%-2c", std::string(buf));
-  SafeSPrintf(fmt, "%%%dc", std::numeric_limits<ssize_t>::max() - 1);
-  EXPECT_EQ(std::numeric_limits<ssize_t>::max()-1, SafeSPrintf(buf, fmt, 'A'));
-  SafeSPrintf(fmt, "%%%dc",
-              static_cast<size_t>(std::numeric_limits<ssize_t>::max()));
-#if defined(NDEBUG)
-  EXPECT_EQ(2, SafeSPrintf(buf, fmt, 'A'));
-  EXPECT_EQ("%c", std::string(buf));
-#elif defined(ALLOW_DEATH_TEST)
-  EXPECT_DEATH(SafeSPrintf(buf, fmt, 'A'), "padding <= max_padding");
-#endif
-
-  // Octal %o
-  EXPECT_EQ(1, SafeSPrintf(buf, "%o", 1));
-  EXPECT_EQ("1", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%2o", 1));
-  EXPECT_EQ(" 1", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%02o", 1));
-  EXPECT_EQ("01", std::string(buf));
-  EXPECT_EQ(12, SafeSPrintf(buf, "%12o", -1));
-  EXPECT_EQ(" 37777777777", std::string(buf));
-  EXPECT_EQ(12, SafeSPrintf(buf, "%012o", -1));
-  EXPECT_EQ("037777777777", std::string(buf));
-  EXPECT_EQ(23, SafeSPrintf(buf, "%23o", -1LL));
-  EXPECT_EQ(" 1777777777777777777777", std::string(buf));
-  EXPECT_EQ(23, SafeSPrintf(buf, "%023o", -1LL));
-  EXPECT_EQ("01777777777777777777777", std::string(buf));
-  EXPECT_EQ(3, SafeSPrintf(buf, "%2o", 0111));
-  EXPECT_EQ("111", std::string(buf));
-  EXPECT_EQ(4, SafeSPrintf(buf, "%-2o", 1));
-  EXPECT_EQ("%-2o", std::string(buf));
-  SafeSPrintf(fmt, "%%%do", std::numeric_limits<ssize_t>::max()-1);
-  EXPECT_EQ(std::numeric_limits<ssize_t>::max()-1,
-            SafeSNPrintf(buf, 4, fmt, 1));
-  EXPECT_EQ("   ", std::string(buf));
-  SafeSPrintf(fmt, "%%0%do", std::numeric_limits<ssize_t>::max()-1);
-  EXPECT_EQ(std::numeric_limits<ssize_t>::max()-1,
-            SafeSNPrintf(buf, 4, fmt, 1));
-  EXPECT_EQ("000", std::string(buf));
-  SafeSPrintf(fmt, "%%%do",
-              static_cast<size_t>(std::numeric_limits<ssize_t>::max()));
-#if defined(NDEBUG)
-  EXPECT_EQ(2, SafeSPrintf(buf, fmt, 1));
-  EXPECT_EQ("%o", std::string(buf));
-#elif defined(ALLOW_DEATH_TEST)
-  EXPECT_DEATH(SafeSPrintf(buf, fmt, 1), "padding <= max_padding");
-#endif
-
-  // Decimals %d
-  EXPECT_EQ(1, SafeSPrintf(buf, "%d", 1));
-  EXPECT_EQ("1", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%2d", 1));
-  EXPECT_EQ(" 1", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%02d", 1));
-  EXPECT_EQ("01", std::string(buf));
-  EXPECT_EQ(3, SafeSPrintf(buf, "%3d", -1));
-  EXPECT_EQ(" -1", std::string(buf));
-  EXPECT_EQ(3, SafeSPrintf(buf, "%03d", -1));
-  EXPECT_EQ("-01", std::string(buf));
-  EXPECT_EQ(3, SafeSPrintf(buf, "%2d", 111));
-  EXPECT_EQ("111", std::string(buf));
-  EXPECT_EQ(4, SafeSPrintf(buf, "%2d", -111));
-  EXPECT_EQ("-111", std::string(buf));
-  EXPECT_EQ(4, SafeSPrintf(buf, "%-2d", 1));
-  EXPECT_EQ("%-2d", std::string(buf));
-  SafeSPrintf(fmt, "%%%dd", std::numeric_limits<ssize_t>::max()-1);
-  EXPECT_EQ(std::numeric_limits<ssize_t>::max()-1,
-            SafeSNPrintf(buf, 4, fmt, 1));
-  EXPECT_EQ("   ", std::string(buf));
-  SafeSPrintf(fmt, "%%0%dd", std::numeric_limits<ssize_t>::max()-1);
-  EXPECT_EQ(std::numeric_limits<ssize_t>::max()-1,
-            SafeSNPrintf(buf, 4, fmt, 1));
-  EXPECT_EQ("000", std::string(buf));
-  SafeSPrintf(fmt, "%%%dd",
-              static_cast<size_t>(std::numeric_limits<ssize_t>::max()));
-#if defined(NDEBUG)
-  EXPECT_EQ(2, SafeSPrintf(buf, fmt, 1));
-  EXPECT_EQ("%d", std::string(buf));
-#elif defined(ALLOW_DEATH_TEST)
-  EXPECT_DEATH(SafeSPrintf(buf, fmt, 1), "padding <= max_padding");
-#endif
-
-  // Hex %X
-  EXPECT_EQ(1, SafeSPrintf(buf, "%X", 1));
-  EXPECT_EQ("1", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%2X", 1));
-  EXPECT_EQ(" 1", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%02X", 1));
-  EXPECT_EQ("01", std::string(buf));
-  EXPECT_EQ(9, SafeSPrintf(buf, "%9X", -1));
-  EXPECT_EQ(" FFFFFFFF", std::string(buf));
-  EXPECT_EQ(9, SafeSPrintf(buf, "%09X", -1));
-  EXPECT_EQ("0FFFFFFFF", std::string(buf));
-  EXPECT_EQ(17, SafeSPrintf(buf, "%17X", -1LL));
-  EXPECT_EQ(" FFFFFFFFFFFFFFFF", std::string(buf));
-  EXPECT_EQ(17, SafeSPrintf(buf, "%017X", -1LL));
-  EXPECT_EQ("0FFFFFFFFFFFFFFFF", std::string(buf));
-  EXPECT_EQ(3, SafeSPrintf(buf, "%2X", 0x111));
-  EXPECT_EQ("111", std::string(buf));
-  EXPECT_EQ(4, SafeSPrintf(buf, "%-2X", 1));
-  EXPECT_EQ("%-2X", std::string(buf));
-  SafeSPrintf(fmt, "%%%dX", std::numeric_limits<ssize_t>::max()-1);
-  EXPECT_EQ(std::numeric_limits<ssize_t>::max()-1,
-            SafeSNPrintf(buf, 4, fmt, 1));
-  EXPECT_EQ("   ", std::string(buf));
-  SafeSPrintf(fmt, "%%0%dX", std::numeric_limits<ssize_t>::max()-1);
-  EXPECT_EQ(std::numeric_limits<ssize_t>::max()-1,
-            SafeSNPrintf(buf, 4, fmt, 1));
-  EXPECT_EQ("000", std::string(buf));
-  SafeSPrintf(fmt, "%%%dX",
-              static_cast<size_t>(std::numeric_limits<ssize_t>::max()));
-#if defined(NDEBUG)
-  EXPECT_EQ(2, SafeSPrintf(buf, fmt, 1));
-  EXPECT_EQ("%X", std::string(buf));
-#elif defined(ALLOW_DEATH_TEST)
-  EXPECT_DEATH(SafeSPrintf(buf, fmt, 1), "padding <= max_padding");
-#endif
-
-  // Pointer %p
-  EXPECT_EQ(3, SafeSPrintf(buf, "%p", (void*)1));
-  EXPECT_EQ("0x1", std::string(buf));
-  EXPECT_EQ(4, SafeSPrintf(buf, "%4p", (void*)1));
-  EXPECT_EQ(" 0x1", std::string(buf));
-  EXPECT_EQ(4, SafeSPrintf(buf, "%04p", (void*)1));
-  EXPECT_EQ("0x01", std::string(buf));
-  EXPECT_EQ(5, SafeSPrintf(buf, "%4p", (void*)0x111));
-  EXPECT_EQ("0x111", std::string(buf));
-  EXPECT_EQ(4, SafeSPrintf(buf, "%-2p", (void*)1));
-  EXPECT_EQ("%-2p", std::string(buf));
-  SafeSPrintf(fmt, "%%%dp", std::numeric_limits<ssize_t>::max()-1);
-  EXPECT_EQ(std::numeric_limits<ssize_t>::max()-1,
-            SafeSNPrintf(buf, 4, fmt, (void*)1));
-  EXPECT_EQ("   ", std::string(buf));
-  SafeSPrintf(fmt, "%%0%dp", std::numeric_limits<ssize_t>::max()-1);
-  EXPECT_EQ(std::numeric_limits<ssize_t>::max()-1,
-            SafeSNPrintf(buf, 4, fmt, (void*)1));
-  EXPECT_EQ("0x0", std::string(buf));
-  SafeSPrintf(fmt, "%%%dp",
-              static_cast<size_t>(std::numeric_limits<ssize_t>::max()));
-#if defined(NDEBUG)
-  EXPECT_EQ(2, SafeSPrintf(buf, fmt, 1));
-  EXPECT_EQ("%p", std::string(buf));
-#elif defined(ALLOW_DEATH_TEST)
-  EXPECT_DEATH(SafeSPrintf(buf, fmt, 1), "padding <= max_padding");
-#endif
-
-  // String
-  EXPECT_EQ(1, SafeSPrintf(buf, "%s", "A"));
-  EXPECT_EQ("A", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%2s", "A"));
-  EXPECT_EQ(" A", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%02s", "A"));
-  EXPECT_EQ(" A", std::string(buf));
-  EXPECT_EQ(3, SafeSPrintf(buf, "%2s", "AAA"));
-  EXPECT_EQ("AAA", std::string(buf));
-  EXPECT_EQ(4, SafeSPrintf(buf, "%-2s", "A"));
-  EXPECT_EQ("%-2s", std::string(buf));
-  SafeSPrintf(fmt, "%%%ds", std::numeric_limits<ssize_t>::max()-1);
-  EXPECT_EQ(std::numeric_limits<ssize_t>::max()-1,
-            SafeSNPrintf(buf, 4, fmt, "A"));
-  EXPECT_EQ("   ", std::string(buf));
-  SafeSPrintf(fmt, "%%0%ds", std::numeric_limits<ssize_t>::max()-1);
-  EXPECT_EQ(std::numeric_limits<ssize_t>::max()-1,
-            SafeSNPrintf(buf, 4, fmt, "A"));
-  EXPECT_EQ("   ", std::string(buf));
-  SafeSPrintf(fmt, "%%%ds",
-              static_cast<size_t>(std::numeric_limits<ssize_t>::max()));
-#if defined(NDEBUG)
-  EXPECT_EQ(2, SafeSPrintf(buf, fmt, "A"));
-  EXPECT_EQ("%s", std::string(buf));
-#elif defined(ALLOW_DEATH_TEST)
-  EXPECT_DEATH(SafeSPrintf(buf, fmt, "A"), "padding <= max_padding");
-#endif
-}
-
-TEST(SafeSPrintfTest, EmbeddedNul) {
-  char buf[] = { 'X', 'X', 'X', 'X' };
-  EXPECT_EQ(2, SafeSPrintf(buf, "%3c", 0));
-  EXPECT_EQ(' ', buf[0]);
-  EXPECT_EQ(' ', buf[1]);
-  EXPECT_EQ(0,   buf[2]);
-  EXPECT_EQ('X', buf[3]);
-
-  // Check handling of a NUL format character. N.B. this takes two different
-  // code paths depending on whether we are actually passing arguments. If
-  // we don't have any arguments, we are running in the fast-path code, that
-  // looks (almost) like a strncpy().
-#if defined(NDEBUG)
-  EXPECT_EQ(2, SafeSPrintf(buf, "%%%"));
-  EXPECT_EQ("%%", std::string(buf));
-  EXPECT_EQ(2, SafeSPrintf(buf, "%%%", 0));
-  EXPECT_EQ("%%", std::string(buf));
-#elif defined(ALLOW_DEATH_TEST)
-  EXPECT_DEATH(SafeSPrintf(buf, "%%%"), "src.1. == '%'");
-  EXPECT_DEATH(SafeSPrintf(buf, "%%%", 0), "ch");
-#endif
-}
-
-TEST(SafeSPrintfTest, EmitNULL) {
-  char buf[40];
-#if defined(__GNUC__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wconversion-null"
-#endif
-  EXPECT_EQ(1, SafeSPrintf(buf, "%d", NULL));
-  EXPECT_EQ("0", std::string(buf));
-  EXPECT_EQ(3, SafeSPrintf(buf, "%p", NULL));
-  EXPECT_EQ("0x0", std::string(buf));
-  EXPECT_EQ(6, SafeSPrintf(buf, "%s", NULL));
-  EXPECT_EQ("<NULL>", std::string(buf));
-#if defined(__GCC__)
-#pragma GCC diagnostic pop
-#endif
-}
-
-TEST(SafeSPrintfTest, PointerSize) {
-  // The internal data representation is a 64bit value, independent of the
-  // native word size. We want to perform sign-extension for signed integers,
-  // but we want to avoid doing so for pointer types. This could be a
-  // problem on systems, where pointers are only 32bit. This tests verifies
-  // that there is no such problem.
-  char *str = reinterpret_cast<char *>(0x80000000u);
-  void *ptr = str;
-  char buf[40];
-  EXPECT_EQ(10, SafeSPrintf(buf, "%p", str));
-  EXPECT_EQ("0x80000000", std::string(buf));
-  EXPECT_EQ(10, SafeSPrintf(buf, "%p", ptr));
-  EXPECT_EQ("0x80000000", std::string(buf));
-}
-
-}  // namespace strings
-}  // namespace base
diff --git a/security/sandbox/chromium/base/strings/string16.cc b/security/sandbox/chromium/base/strings/string16.cc
deleted file mode 100644
index f4c8cf746..000000000
--- a/security/sandbox/chromium/base/strings/string16.cc
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/strings/string16.h"
-
-#if defined(WCHAR_T_IS_UTF16)
-
-#error This file should not be used on 2-byte wchar_t systems
-// If this winds up being needed on 2-byte wchar_t systems, either the
-// definitions below can be used, or the host system's wide character
-// functions like wmemcmp can be wrapped.
-
-#elif defined(WCHAR_T_IS_UTF32)
-
-#include <ostream>
-
-#include "base/strings/utf_string_conversions.h"
-
-namespace base {
-
-int c16memcmp(const char16* s1, const char16* s2, size_t n) {
-  // We cannot call memcmp because that changes the semantics.
-  while (n-- > 0) {
-    if (*s1 != *s2) {
-      // We cannot use (*s1 - *s2) because char16 is unsigned.
-      return ((*s1 < *s2) ? -1 : 1);
-    }
-    ++s1;
-    ++s2;
-  }
-  return 0;
-}
-
-size_t c16len(const char16* s) {
-  const char16 *s_orig = s;
-  while (*s) {
-    ++s;
-  }
-  return s - s_orig;
-}
-
-const char16* c16memchr(const char16* s, char16 c, size_t n) {
-  while (n-- > 0) {
-    if (*s == c) {
-      return s;
-    }
-    ++s;
-  }
-  return 0;
-}
-
-char16* c16memmove(char16* s1, const char16* s2, size_t n) {
-  return static_cast<char16*>(memmove(s1, s2, n * sizeof(char16)));
-}
-
-char16* c16memcpy(char16* s1, const char16* s2, size_t n) {
-  return static_cast<char16*>(memcpy(s1, s2, n * sizeof(char16)));
-}
-
-char16* c16memset(char16* s, char16 c, size_t n) {
-  char16 *s_orig = s;
-  while (n-- > 0) {
-    *s = c;
-    ++s;
-  }
-  return s_orig;
-}
-
-std::ostream& operator<<(std::ostream& out, const string16& str) {
-  return out << UTF16ToUTF8(str);
-}
-
-void PrintTo(const string16& str, std::ostream* out) {
-  *out << str;
-}
-
-}  // namespace base
-
-template class std::basic_string<base::char16, base::string16_char_traits>;
-
-#endif  // WCHAR_T_IS_UTF32
diff --git a/security/sandbox/chromium/base/strings/string16.h b/security/sandbox/chromium/base/strings/string16.h
deleted file mode 100644
index e47669c1b..000000000
--- a/security/sandbox/chromium/base/strings/string16.h
+++ /dev/null
@@ -1,187 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BASE_STRINGS_STRING16_H_
-#define BASE_STRINGS_STRING16_H_
-
-// WHAT:
-// A version of std::basic_string that provides 2-byte characters even when
-// wchar_t is not implemented as a 2-byte type. You can access this class as
-// string16. We also define char16, which string16 is based upon.
-//
-// WHY:
-// On Windows, wchar_t is 2 bytes, and it can conveniently handle UTF-16/UCS-2
-// data. Plenty of existing code operates on strings encoded as UTF-16.
-//
-// On many other platforms, sizeof(wchar_t) is 4 bytes by default. We can make
-// it 2 bytes by using the GCC flag -fshort-wchar. But then std::wstring fails
-// at run time, because it calls some functions (like wcslen) that come from
-// the system's native C library -- which was built with a 4-byte wchar_t!
-// It's wasteful to use 4-byte wchar_t strings to carry UTF-16 data, and it's
-// entirely improper on those systems where the encoding of wchar_t is defined
-// as UTF-32.
-//
-// Here, we define string16, which is similar to std::wstring but replaces all
-// libc functions with custom, 2-byte-char compatible routines. It is capable
-// of carrying UTF-16-encoded data.
-
-#include <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <string>
-
-#include "base/base_export.h"
-#include "build/build_config.h"
-
-#if defined(WCHAR_T_IS_UTF16)
-
-namespace base {
-
-typedef wchar_t char16;
-typedef std::wstring string16;
-typedef std::char_traits<wchar_t> string16_char_traits;
-
-}  // namespace base
-
-#elif defined(WCHAR_T_IS_UTF32)
-
-namespace base {
-
-typedef uint16_t char16;
-
-// char16 versions of the functions required by string16_char_traits; these
-// are based on the wide character functions of similar names ("w" or "wcs"
-// instead of "c16").
-BASE_EXPORT int c16memcmp(const char16* s1, const char16* s2, size_t n);
-BASE_EXPORT size_t c16len(const char16* s);
-BASE_EXPORT const char16* c16memchr(const char16* s, char16 c, size_t n);
-BASE_EXPORT char16* c16memmove(char16* s1, const char16* s2, size_t n);
-BASE_EXPORT char16* c16memcpy(char16* s1, const char16* s2, size_t n);
-BASE_EXPORT char16* c16memset(char16* s, char16 c, size_t n);
-
-struct string16_char_traits {
-  typedef char16 char_type;
-  typedef int int_type;
-
-  // int_type needs to be able to hold each possible value of char_type, and in
-  // addition, the distinct value of eof().
-  static_assert(sizeof(int_type) > sizeof(char_type),
-                "int must be larger than 16 bits wide");
-
-  typedef std::streamoff off_type;
-  typedef mbstate_t state_type;
-  typedef std::fpos<state_type> pos_type;
-
-  static void assign(char_type& c1, const char_type& c2) {
-    c1 = c2;
-  }
-
-  static bool eq(const char_type& c1, const char_type& c2) {
-    return c1 == c2;
-  }
-  static bool lt(const char_type& c1, const char_type& c2) {
-    return c1 < c2;
-  }
-
-  static int compare(const char_type* s1, const char_type* s2, size_t n) {
-    return c16memcmp(s1, s2, n);
-  }
-
-  static size_t length(const char_type* s) {
-    return c16len(s);
-  }
-
-  static const char_type* find(const char_type* s, size_t n,
-                               const char_type& a) {
-    return c16memchr(s, a, n);
-  }
-
-  static char_type* move(char_type* s1, const char_type* s2, size_t n) {
-    return c16memmove(s1, s2, n);
-  }
-
-  static char_type* copy(char_type* s1, const char_type* s2, size_t n) {
-    return c16memcpy(s1, s2, n);
-  }
-
-  static char_type* assign(char_type* s, size_t n, char_type a) {
-    return c16memset(s, a, n);
-  }
-
-  static int_type not_eof(const int_type& c) {
-    return eq_int_type(c, eof()) ? 0 : c;
-  }
-
-  static char_type to_char_type(const int_type& c) {
-    return char_type(c);
-  }
-
-  static int_type to_int_type(const char_type& c) {
-    return int_type(c);
-  }
-
-  static bool eq_int_type(const int_type& c1, const int_type& c2) {
-    return c1 == c2;
-  }
-
-  static int_type eof() {
-    return static_cast<int_type>(EOF);
-  }
-};
-
-typedef std::basic_string<char16, base::string16_char_traits> string16;
-
-BASE_EXPORT extern std::ostream& operator<<(std::ostream& out,
-                                            const string16& str);
-
-// This is required by googletest to print a readable output on test failures.
-BASE_EXPORT extern void PrintTo(const string16& str, std::ostream* out);
-
-}  // namespace base
-
-// The string class will be explicitly instantiated only once, in string16.cc.
-//
-// std::basic_string<> in GNU libstdc++ contains a static data member,
-// _S_empty_rep_storage, to represent empty strings.  When an operation such
-// as assignment or destruction is performed on a string, causing its existing
-// data member to be invalidated, it must not be freed if this static data
-// member is being used.  Otherwise, it counts as an attempt to free static
-// (and not allocated) data, which is a memory error.
-//
-// Generally, due to C++ template magic, _S_empty_rep_storage will be marked
-// as a coalesced symbol, meaning that the linker will combine multiple
-// instances into a single one when generating output.
-//
-// If a string class is used by multiple shared libraries, a problem occurs.
-// Each library will get its own copy of _S_empty_rep_storage.  When strings
-// are passed across a library boundary for alteration or destruction, memory
-// errors will result.  GNU libstdc++ contains a configuration option,
-// --enable-fully-dynamic-string (_GLIBCXX_FULLY_DYNAMIC_STRING), which
-// disables the static data member optimization, but it's a good optimization
-// and non-STL code is generally at the mercy of the system's STL
-// configuration.  Fully-dynamic strings are not the default for GNU libstdc++
-// libstdc++ itself or for the libstdc++ installations on the systems we care
-// about, such as Mac OS X and relevant flavors of Linux.
-//
-// See also http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24196 .
-//
-// To avoid problems, string classes need to be explicitly instantiated only
-// once, in exactly one library.  All other string users see it via an "extern"
-// declaration.  This is precisely how GNU libstdc++ handles
-// std::basic_string<char> (string) and std::basic_string<wchar_t> (wstring).
-//
-// This also works around a Mac OS X linker bug in ld64-85.2.1 (Xcode 3.1.2),
-// in which the linker does not fully coalesce symbols when dead code
-// stripping is enabled.  This bug causes the memory errors described above
-// to occur even when a std::basic_string<> does not cross shared library
-// boundaries, such as in statically-linked executables.
-//
-// TODO(mark): File this bug with Apple and update this note with a bug number.
-
-extern template
-class BASE_EXPORT std::basic_string<base::char16, base::string16_char_traits>;
-
-#endif  // WCHAR_T_IS_UTF32
-
-#endif  // BASE_STRINGS_STRING16_H_
diff --git a/security/sandbox/chromium/base/strings/string_number_conversions.cc b/security/sandbox/chromium/base/strings/string_number_conversions.cc
deleted file mode 100644
index 07248501e..000000000
--- a/security/sandbox/chromium/base/strings/string_number_conversions.cc
+++ /dev/null
@@ -1,485 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/strings/string_number_conversions.h"
-
-#include <ctype.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <wctype.h>
-
-#include <limits>
-
-#include "base/logging.h"
-#include "base/numerics/safe_conversions.h"
-#include "base/numerics/safe_math.h"
-#include "base/scoped_clear_errno.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/third_party/dmg_fp/dmg_fp.h"
-
-namespace base {
-
-namespace {
-
-template <typename STR, typename INT>
-struct IntToStringT {
-  static STR IntToString(INT value) {
-    // log10(2) ~= 0.3 bytes needed per bit or per byte log10(2**8) ~= 2.4.
-    // So round up to allocate 3 output characters per byte, plus 1 for '-'.
-    const size_t kOutputBufSize =
-        3 * sizeof(INT) + std::numeric_limits<INT>::is_signed;
-
-    // Create the string in a temporary buffer, write it back to front, and
-    // then return the substr of what we ended up using.
-    using CHR = typename STR::value_type;
-    CHR outbuf[kOutputBufSize];
-
-    // The ValueOrDie call below can never fail, because UnsignedAbs is valid
-    // for all valid inputs.
-    auto res = CheckedNumeric<INT>(value).UnsignedAbs().ValueOrDie();
-
-    CHR* end = outbuf + kOutputBufSize;
-    CHR* i = end;
-    do {
-      --i;
-      DCHECK(i != outbuf);
-      *i = static_cast<CHR>((res % 10) + '0');
-      res /= 10;
-    } while (res != 0);
-    if (IsValueNegative(value)) {
-      --i;
-      DCHECK(i != outbuf);
-      *i = static_cast<CHR>('-');
-    }
-    return STR(i, end);
-  }
-};
-
-// Utility to convert a character to a digit in a given base
-template<typename CHAR, int BASE, bool BASE_LTE_10> class BaseCharToDigit {
-};
-
-// Faster specialization for bases <= 10
-template<typename CHAR, int BASE> class BaseCharToDigit<CHAR, BASE, true> {
- public:
-  static bool Convert(CHAR c, uint8_t* digit) {
-    if (c >= '0' && c < '0' + BASE) {
-      *digit = static_cast<uint8_t>(c - '0');
-      return true;
-    }
-    return false;
-  }
-};
-
-// Specialization for bases where 10 < base <= 36
-template<typename CHAR, int BASE> class BaseCharToDigit<CHAR, BASE, false> {
- public:
-  static bool Convert(CHAR c, uint8_t* digit) {
-    if (c >= '0' && c <= '9') {
-      *digit = c - '0';
-    } else if (c >= 'a' && c < 'a' + BASE - 10) {
-      *digit = c - 'a' + 10;
-    } else if (c >= 'A' && c < 'A' + BASE - 10) {
-      *digit = c - 'A' + 10;
-    } else {
-      return false;
-    }
-    return true;
-  }
-};
-
-template <int BASE, typename CHAR>
-bool CharToDigit(CHAR c, uint8_t* digit) {
-  return BaseCharToDigit<CHAR, BASE, BASE <= 10>::Convert(c, digit);
-}
-
-// There is an IsUnicodeWhitespace for wchars defined in string_util.h, but it
-// is locale independent, whereas the functions we are replacing were
-// locale-dependent. TBD what is desired, but for the moment let's not
-// introduce a change in behaviour.
-template<typename CHAR> class WhitespaceHelper {
-};
-
-template<> class WhitespaceHelper<char> {
- public:
-  static bool Invoke(char c) {
-    return 0 != isspace(static_cast<unsigned char>(c));
-  }
-};
-
-template<> class WhitespaceHelper<char16> {
- public:
-  static bool Invoke(char16 c) {
-    return 0 != iswspace(c);
-  }
-};
-
-template<typename CHAR> bool LocalIsWhitespace(CHAR c) {
-  return WhitespaceHelper<CHAR>::Invoke(c);
-}
-
-// IteratorRangeToNumberTraits should provide:
-//  - a typedef for iterator_type, the iterator type used as input.
-//  - a typedef for value_type, the target numeric type.
-//  - static functions min, max (returning the minimum and maximum permitted
-//    values)
-//  - constant kBase, the base in which to interpret the input
-template<typename IteratorRangeToNumberTraits>
-class IteratorRangeToNumber {
- public:
-  typedef IteratorRangeToNumberTraits traits;
-  typedef typename traits::iterator_type const_iterator;
-  typedef typename traits::value_type value_type;
-
-  // Generalized iterator-range-to-number conversion.
-  //
-  static bool Invoke(const_iterator begin,
-                     const_iterator end,
-                     value_type* output) {
-    bool valid = true;
-
-    while (begin != end && LocalIsWhitespace(*begin)) {
-      valid = false;
-      ++begin;
-    }
-
-    if (begin != end && *begin == '-') {
-      if (!std::numeric_limits<value_type>::is_signed) {
-        valid = false;
-      } else if (!Negative::Invoke(begin + 1, end, output)) {
-        valid = false;
-      }
-    } else {
-      if (begin != end && *begin == '+') {
-        ++begin;
-      }
-      if (!Positive::Invoke(begin, end, output)) {
-        valid = false;
-      }
-    }
-
-    return valid;
-  }
-
- private:
-  // Sign provides:
-  //  - a static function, CheckBounds, that determines whether the next digit
-  //    causes an overflow/underflow
-  //  - a static function, Increment, that appends the next digit appropriately
-  //    according to the sign of the number being parsed.
-  template<typename Sign>
-  class Base {
-   public:
-    static bool Invoke(const_iterator begin, const_iterator end,
-                       typename traits::value_type* output) {
-      *output = 0;
-
-      if (begin == end) {
-        return false;
-      }
-
-      // Note: no performance difference was found when using template
-      // specialization to remove this check in bases other than 16
-      if (traits::kBase == 16 && end - begin > 2 && *begin == '0' &&
-          (*(begin + 1) == 'x' || *(begin + 1) == 'X')) {
-        begin += 2;
-      }
-
-      for (const_iterator current = begin; current != end; ++current) {
-        uint8_t new_digit = 0;
-
-        if (!CharToDigit<traits::kBase>(*current, &new_digit)) {
-          return false;
-        }
-
-        if (current != begin) {
-          if (!Sign::CheckBounds(output, new_digit)) {
-            return false;
-          }
-          *output *= traits::kBase;
-        }
-
-        Sign::Increment(new_digit, output);
-      }
-      return true;
-    }
-  };
-
-  class Positive : public Base<Positive> {
-   public:
-    static bool CheckBounds(value_type* output, uint8_t new_digit) {
-      if (*output > static_cast<value_type>(traits::max() / traits::kBase) ||
-          (*output == static_cast<value_type>(traits::max() / traits::kBase) &&
-           new_digit > traits::max() % traits::kBase)) {
-        *output = traits::max();
-        return false;
-      }
-      return true;
-    }
-    static void Increment(uint8_t increment, value_type* output) {
-      *output += increment;
-    }
-  };
-
-  class Negative : public Base<Negative> {
-   public:
-    static bool CheckBounds(value_type* output, uint8_t new_digit) {
-      if (*output < traits::min() / traits::kBase ||
-          (*output == traits::min() / traits::kBase &&
-           new_digit > 0 - traits::min() % traits::kBase)) {
-        *output = traits::min();
-        return false;
-      }
-      return true;
-    }
-    static void Increment(uint8_t increment, value_type* output) {
-      *output -= increment;
-    }
-  };
-};
-
-template<typename ITERATOR, typename VALUE, int BASE>
-class BaseIteratorRangeToNumberTraits {
- public:
-  typedef ITERATOR iterator_type;
-  typedef VALUE value_type;
-  static value_type min() {
-    return std::numeric_limits<value_type>::min();
-  }
-  static value_type max() {
-    return std::numeric_limits<value_type>::max();
-  }
-  static const int kBase = BASE;
-};
-
-template<typename ITERATOR>
-class BaseHexIteratorRangeToIntTraits
-    : public BaseIteratorRangeToNumberTraits<ITERATOR, int, 16> {
-};
-
-template <typename ITERATOR>
-class BaseHexIteratorRangeToUIntTraits
-    : public BaseIteratorRangeToNumberTraits<ITERATOR, uint32_t, 16> {};
-
-template <typename ITERATOR>
-class BaseHexIteratorRangeToInt64Traits
-    : public BaseIteratorRangeToNumberTraits<ITERATOR, int64_t, 16> {};
-
-template <typename ITERATOR>
-class BaseHexIteratorRangeToUInt64Traits
-    : public BaseIteratorRangeToNumberTraits<ITERATOR, uint64_t, 16> {};
-
-typedef BaseHexIteratorRangeToIntTraits<StringPiece::const_iterator>
-    HexIteratorRangeToIntTraits;
-
-typedef BaseHexIteratorRangeToUIntTraits<StringPiece::const_iterator>
-    HexIteratorRangeToUIntTraits;
-
-typedef BaseHexIteratorRangeToInt64Traits<StringPiece::const_iterator>
-    HexIteratorRangeToInt64Traits;
-
-typedef BaseHexIteratorRangeToUInt64Traits<StringPiece::const_iterator>
-    HexIteratorRangeToUInt64Traits;
-
-template <typename STR>
-bool HexStringToBytesT(const STR& input, std::vector<uint8_t>* output) {
-  DCHECK_EQ(output->size(), 0u);
-  size_t count = input.size();
-  if (count == 0 || (count % 2) != 0)
-    return false;
-  for (uintptr_t i = 0; i < count / 2; ++i) {
-    uint8_t msb = 0;  // most significant 4 bits
-    uint8_t lsb = 0;  // least significant 4 bits
-    if (!CharToDigit<16>(input[i * 2], &msb) ||
-        !CharToDigit<16>(input[i * 2 + 1], &lsb))
-      return false;
-    output->push_back((msb << 4) | lsb);
-  }
-  return true;
-}
-
-template <typename VALUE, int BASE>
-class StringPieceToNumberTraits
-    : public BaseIteratorRangeToNumberTraits<StringPiece::const_iterator,
-                                             VALUE,
-                                             BASE> {
-};
-
-template <typename VALUE>
-bool StringToIntImpl(const StringPiece& input, VALUE* output) {
-  return IteratorRangeToNumber<StringPieceToNumberTraits<VALUE, 10> >::Invoke(
-      input.begin(), input.end(), output);
-}
-
-template <typename VALUE, int BASE>
-class StringPiece16ToNumberTraits
-    : public BaseIteratorRangeToNumberTraits<StringPiece16::const_iterator,
-                                             VALUE,
-                                             BASE> {
-};
-
-template <typename VALUE>
-bool String16ToIntImpl(const StringPiece16& input, VALUE* output) {
-  return IteratorRangeToNumber<StringPiece16ToNumberTraits<VALUE, 10> >::Invoke(
-      input.begin(), input.end(), output);
-}
-
-}  // namespace
-
-std::string IntToString(int value) {
-  return IntToStringT<std::string, int>::IntToString(value);
-}
-
-string16 IntToString16(int value) {
-  return IntToStringT<string16, int>::IntToString(value);
-}
-
-std::string UintToString(unsigned int value) {
-  return IntToStringT<std::string, unsigned int>::IntToString(value);
-}
-
-string16 UintToString16(unsigned int value) {
-  return IntToStringT<string16, unsigned int>::IntToString(value);
-}
-
-std::string Int64ToString(int64_t value) {
-  return IntToStringT<std::string, int64_t>::IntToString(value);
-}
-
-string16 Int64ToString16(int64_t value) {
-  return IntToStringT<string16, int64_t>::IntToString(value);
-}
-
-std::string Uint64ToString(uint64_t value) {
-  return IntToStringT<std::string, uint64_t>::IntToString(value);
-}
-
-string16 Uint64ToString16(uint64_t value) {
-  return IntToStringT<string16, uint64_t>::IntToString(value);
-}
-
-std::string SizeTToString(size_t value) {
-  return IntToStringT<std::string, size_t>::IntToString(value);
-}
-
-string16 SizeTToString16(size_t value) {
-  return IntToStringT<string16, size_t>::IntToString(value);
-}
-
-std::string DoubleToString(double value) {
-  // According to g_fmt.cc, it is sufficient to declare a buffer of size 32.
-  char buffer[32];
-  dmg_fp::g_fmt(buffer, value);
-  return std::string(buffer);
-}
-
-bool StringToInt(const StringPiece& input, int* output) {
-  return StringToIntImpl(input, output);
-}
-
-bool StringToInt(const StringPiece16& input, int* output) {
-  return String16ToIntImpl(input, output);
-}
-
-bool StringToUint(const StringPiece& input, unsigned* output) {
-  return StringToIntImpl(input, output);
-}
-
-bool StringToUint(const StringPiece16& input, unsigned* output) {
-  return String16ToIntImpl(input, output);
-}
-
-bool StringToInt64(const StringPiece& input, int64_t* output) {
-  return StringToIntImpl(input, output);
-}
-
-bool StringToInt64(const StringPiece16& input, int64_t* output) {
-  return String16ToIntImpl(input, output);
-}
-
-bool StringToUint64(const StringPiece& input, uint64_t* output) {
-  return StringToIntImpl(input, output);
-}
-
-bool StringToUint64(const StringPiece16& input, uint64_t* output) {
-  return String16ToIntImpl(input, output);
-}
-
-bool StringToSizeT(const StringPiece& input, size_t* output) {
-  return StringToIntImpl(input, output);
-}
-
-bool StringToSizeT(const StringPiece16& input, size_t* output) {
-  return String16ToIntImpl(input, output);
-}
-
-bool StringToDouble(const std::string& input, double* output) {
-  // Thread-safe?  It is on at least Mac, Linux, and Windows.
-  ScopedClearErrno clear_errno;
-
-  char* endptr = NULL;
-  *output = dmg_fp::strtod(input.c_str(), &endptr);
-
-  // Cases to return false:
-  //  - If errno is ERANGE, there was an overflow or underflow.
-  //  - If the input string is empty, there was nothing to parse.
-  //  - If endptr does not point to the end of the string, there are either
-  //    characters remaining in the string after a parsed number, or the string
-  //    does not begin with a parseable number.  endptr is compared to the
-  //    expected end given the string's stated length to correctly catch cases
-  //    where the string contains embedded NUL characters.
-  //  - If the first character is a space, there was leading whitespace
-  return errno == 0 &&
-         !input.empty() &&
-         input.c_str() + input.length() == endptr &&
-         !isspace(input[0]);
-}
-
-// Note: if you need to add String16ToDouble, first ask yourself if it's
-// really necessary. If it is, probably the best implementation here is to
-// convert to 8-bit and then use the 8-bit version.
-
-// Note: if you need to add an iterator range version of StringToDouble, first
-// ask yourself if it's really necessary. If it is, probably the best
-// implementation here is to instantiate a string and use the string version.
-
-std::string HexEncode(const void* bytes, size_t size) {
-  static const char kHexChars[] = "0123456789ABCDEF";
-
-  // Each input byte creates two output hex characters.
-  std::string ret(size * 2, '\0');
-
-  for (size_t i = 0; i < size; ++i) {
-    char b = reinterpret_cast<const char*>(bytes)[i];
-    ret[(i * 2)] = kHexChars[(b >> 4) & 0xf];
-    ret[(i * 2) + 1] = kHexChars[b & 0xf];
-  }
-  return ret;
-}
-
-bool HexStringToInt(const StringPiece& input, int* output) {
-  return IteratorRangeToNumber<HexIteratorRangeToIntTraits>::Invoke(
-    input.begin(), input.end(), output);
-}
-
-bool HexStringToUInt(const StringPiece& input, uint32_t* output) {
-  return IteratorRangeToNumber<HexIteratorRangeToUIntTraits>::Invoke(
-      input.begin(), input.end(), output);
-}
-
-bool HexStringToInt64(const StringPiece& input, int64_t* output) {
-  return IteratorRangeToNumber<HexIteratorRangeToInt64Traits>::Invoke(
-    input.begin(), input.end(), output);
-}
-
-bool HexStringToUInt64(const StringPiece& input, uint64_t* output) {
-  return IteratorRangeToNumber<HexIteratorRangeToUInt64Traits>::Invoke(
-      input.begin(), input.end(), output);
-}
-
-bool HexStringToBytes(const std::string& input, std::vector<uint8_t>* output) {
-  return HexStringToBytesT(input, output);
-}
-
-}  // namespace base
diff --git a/security/sandbox/chromium/base/strings/string_number_conversions.h b/security/sandbox/chromium/base/strings/string_number_conversions.h
deleted file mode 100644
index 1265f0dcb..000000000
--- a/security/sandbox/chromium/base/strings/string_number_conversions.h
+++ /dev/null
@@ -1,137 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BASE_STRINGS_STRING_NUMBER_CONVERSIONS_H_
-#define BASE_STRINGS_STRING_NUMBER_CONVERSIONS_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <string>
-#include <vector>
-
-#include "base/base_export.h"
-#include "base/strings/string16.h"
-#include "base/strings/string_piece.h"
-
-// ----------------------------------------------------------------------------
-// IMPORTANT MESSAGE FROM YOUR SPONSOR
-//
-// This file contains no "wstring" variants. New code should use string16. If
-// you need to make old code work, use the UTF8 version and convert. Please do
-// not add wstring variants.
-//
-// Please do not add "convenience" functions for converting strings to integers
-// that return the value and ignore success/failure. That encourages people to
-// write code that doesn't properly handle the error conditions.
-// ----------------------------------------------------------------------------
-
-namespace base {
-
-// Number -> string conversions ------------------------------------------------
-
-BASE_EXPORT std::string IntToString(int value);
-BASE_EXPORT string16 IntToString16(int value);
-
-BASE_EXPORT std::string UintToString(unsigned value);
-BASE_EXPORT string16 UintToString16(unsigned value);
-
-BASE_EXPORT std::string Int64ToString(int64_t value);
-BASE_EXPORT string16 Int64ToString16(int64_t value);
-
-BASE_EXPORT std::string Uint64ToString(uint64_t value);
-BASE_EXPORT string16 Uint64ToString16(uint64_t value);
-
-BASE_EXPORT std::string SizeTToString(size_t value);
-BASE_EXPORT string16 SizeTToString16(size_t value);
-
-// DoubleToString converts the double to a string format that ignores the
-// locale. If you want to use locale specific formatting, use ICU.
-BASE_EXPORT std::string DoubleToString(double value);
-
-// String -> number conversions ------------------------------------------------
-
-// Perform a best-effort conversion of the input string to a numeric type,
-// setting |*output| to the result of the conversion.  Returns true for
-// "perfect" conversions; returns false in the following cases:
-//  - Overflow. |*output| will be set to the maximum value supported
-//    by the data type.
-//  - Underflow. |*output| will be set to the minimum value supported
-//    by the data type.
-//  - Trailing characters in the string after parsing the number.  |*output|
-//    will be set to the value of the number that was parsed.
-//  - Leading whitespace in the string before parsing the number. |*output| will
-//    be set to the value of the number that was parsed.
-//  - No characters parseable as a number at the beginning of the string.
-//    |*output| will be set to 0.
-//  - Empty string.  |*output| will be set to 0.
-// WARNING: Will write to |output| even when returning false.
-//          Read the comments above carefully.
-BASE_EXPORT bool StringToInt(const StringPiece& input, int* output);
-BASE_EXPORT bool StringToInt(const StringPiece16& input, int* output);
-
-BASE_EXPORT bool StringToUint(const StringPiece& input, unsigned* output);
-BASE_EXPORT bool StringToUint(const StringPiece16& input, unsigned* output);
-
-BASE_EXPORT bool StringToInt64(const StringPiece& input, int64_t* output);
-BASE_EXPORT bool StringToInt64(const StringPiece16& input, int64_t* output);
-
-BASE_EXPORT bool StringToUint64(const StringPiece& input, uint64_t* output);
-BASE_EXPORT bool StringToUint64(const StringPiece16& input, uint64_t* output);
-
-BASE_EXPORT bool StringToSizeT(const StringPiece& input, size_t* output);
-BASE_EXPORT bool StringToSizeT(const StringPiece16& input, size_t* output);
-
-// For floating-point conversions, only conversions of input strings in decimal
-// form are defined to work.  Behavior with strings representing floating-point
-// numbers in hexadecimal, and strings representing non-finite values (such as
-// NaN and inf) is undefined.  Otherwise, these behave the same as the integral
-// variants.  This expects the input string to NOT be specific to the locale.
-// If your input is locale specific, use ICU to read the number.
-// WARNING: Will write to |output| even when returning false.
-//          Read the comments here and above StringToInt() carefully.
-BASE_EXPORT bool StringToDouble(const std::string& input, double* output);
-
-// Hex encoding ----------------------------------------------------------------
-
-// Returns a hex string representation of a binary buffer. The returned hex
-// string will be in upper case. This function does not check if |size| is
-// within reasonable limits since it's written with trusted data in mind.  If
-// you suspect that the data you want to format might be large, the absolute
-// max size for |size| should be is
-//   std::numeric_limits<size_t>::max() / 2
-BASE_EXPORT std::string HexEncode(const void* bytes, size_t size);
-
-// Best effort conversion, see StringToInt above for restrictions.
-// Will only successful parse hex values that will fit into |output|, i.e.
-// -0x80000000 < |input| < 0x7FFFFFFF.
-BASE_EXPORT bool HexStringToInt(const StringPiece& input, int* output);
-
-// Best effort conversion, see StringToInt above for restrictions.
-// Will only successful parse hex values that will fit into |output|, i.e.
-// 0x00000000 < |input| < 0xFFFFFFFF.
-// The string is not required to start with 0x.
-BASE_EXPORT bool HexStringToUInt(const StringPiece& input, uint32_t* output);
-
-// Best effort conversion, see StringToInt above for restrictions.
-// Will only successful parse hex values that will fit into |output|, i.e.
-// -0x8000000000000000 < |input| < 0x7FFFFFFFFFFFFFFF.
-BASE_EXPORT bool HexStringToInt64(const StringPiece& input, int64_t* output);
-
-// Best effort conversion, see StringToInt above for restrictions.
-// Will only successful parse hex values that will fit into |output|, i.e.
-// 0x0000000000000000 < |input| < 0xFFFFFFFFFFFFFFFF.
-// The string is not required to start with 0x.
-BASE_EXPORT bool HexStringToUInt64(const StringPiece& input, uint64_t* output);
-
-// Similar to the previous functions, except that output is a vector of bytes.
-// |*output| will contain as many bytes as were successfully parsed prior to the
-// error.  There is no overflow, but input.size() must be evenly divisible by 2.
-// Leading 0x or +/- are not allowed.
-BASE_EXPORT bool HexStringToBytes(const std::string& input,
-                                  std::vector<uint8_t>* output);
-
-}  // namespace base
-
-#endif  // BASE_STRINGS_STRING_NUMBER_CONVERSIONS_H_
diff --git a/security/sandbox/chromium/base/strings/string_piece.cc b/security/sandbox/chromium/base/strings/string_piece.cc
deleted file mode 100644
index c26bb3652..000000000
--- a/security/sandbox/chromium/base/strings/string_piece.cc
+++ /dev/null
@@ -1,452 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-// Copied from strings/stringpiece.cc with modifications
-
-#include "base/strings/string_piece.h"
-
-#include <limits.h>
-
-#include <algorithm>
-#include <ostream>
-
-#include "base/logging.h"
-
-namespace base {
-namespace {
-
-// For each character in characters_wanted, sets the index corresponding
-// to the ASCII code of that character to 1 in table.  This is used by
-// the find_.*_of methods below to tell whether or not a character is in
-// the lookup table in constant time.
-// The argument `table' must be an array that is large enough to hold all
-// the possible values of an unsigned char.  Thus it should be be declared
-// as follows:
-//   bool table[UCHAR_MAX + 1]
-inline void BuildLookupTable(const StringPiece& characters_wanted,
-                             bool* table) {
-  const size_t length = characters_wanted.length();
-  const char* const data = characters_wanted.data();
-  for (size_t i = 0; i < length; ++i) {
-    table[static_cast<unsigned char>(data[i])] = true;
-  }
-}
-
-}  // namespace
-
-// MSVC doesn't like complex extern templates and DLLs.
-#if !defined(COMPILER_MSVC)
-template class BasicStringPiece<std::string>;
-template class BasicStringPiece<string16>;
-#endif
-
-bool operator==(const StringPiece& x, const StringPiece& y) {
-  if (x.size() != y.size())
-    return false;
-
-  return StringPiece::wordmemcmp(x.data(), y.data(), x.size()) == 0;
-}
-
-std::ostream& operator<<(std::ostream& o, const StringPiece& piece) {
-  o.write(piece.data(), static_cast<std::streamsize>(piece.size()));
-  return o;
-}
-
-namespace internal {
-
-template<typename STR>
-void CopyToStringT(const BasicStringPiece<STR>& self, STR* target) {
-  if (self.empty())
-    target->clear();
-  else
-    target->assign(self.data(), self.size());
-}
-
-void CopyToString(const StringPiece& self, std::string* target) {
-  CopyToStringT(self, target);
-}
-
-void CopyToString(const StringPiece16& self, string16* target) {
-  CopyToStringT(self, target);
-}
-
-template<typename STR>
-void AppendToStringT(const BasicStringPiece<STR>& self, STR* target) {
-  if (!self.empty())
-    target->append(self.data(), self.size());
-}
-
-void AppendToString(const StringPiece& self, std::string* target) {
-  AppendToStringT(self, target);
-}
-
-void AppendToString(const StringPiece16& self, string16* target) {
-  AppendToStringT(self, target);
-}
-
-template<typename STR>
-size_t copyT(const BasicStringPiece<STR>& self,
-             typename STR::value_type* buf,
-             size_t n,
-             size_t pos) {
-  size_t ret = std::min(self.size() - pos, n);
-  memcpy(buf, self.data() + pos, ret * sizeof(typename STR::value_type));
-  return ret;
-}
-
-size_t copy(const StringPiece& self, char* buf, size_t n, size_t pos) {
-  return copyT(self, buf, n, pos);
-}
-
-size_t copy(const StringPiece16& self, char16* buf, size_t n, size_t pos) {
-  return copyT(self, buf, n, pos);
-}
-
-template<typename STR>
-size_t findT(const BasicStringPiece<STR>& self,
-             const BasicStringPiece<STR>& s,
-             size_t pos) {
-  if (pos > self.size())
-    return BasicStringPiece<STR>::npos;
-
-  typename BasicStringPiece<STR>::const_iterator result =
-      std::search(self.begin() + pos, self.end(), s.begin(), s.end());
-  const size_t xpos =
-    static_cast<size_t>(result - self.begin());
-  return xpos + s.size() <= self.size() ? xpos : BasicStringPiece<STR>::npos;
-}
-
-size_t find(const StringPiece& self, const StringPiece& s, size_t pos) {
-  return findT(self, s, pos);
-}
-
-size_t find(const StringPiece16& self, const StringPiece16& s, size_t pos) {
-  return findT(self, s, pos);
-}
-
-template<typename STR>
-size_t findT(const BasicStringPiece<STR>& self,
-             typename STR::value_type c,
-             size_t pos) {
-  if (pos >= self.size())
-    return BasicStringPiece<STR>::npos;
-
-  typename BasicStringPiece<STR>::const_iterator result =
-      std::find(self.begin() + pos, self.end(), c);
-  return result != self.end() ?
-      static_cast<size_t>(result - self.begin()) : BasicStringPiece<STR>::npos;
-}
-
-size_t find(const StringPiece& self, char c, size_t pos) {
-  return findT(self, c, pos);
-}
-
-size_t find(const StringPiece16& self, char16 c, size_t pos) {
-  return findT(self, c, pos);
-}
-
-template<typename STR>
-size_t rfindT(const BasicStringPiece<STR>& self,
-              const BasicStringPiece<STR>& s,
-              size_t pos) {
-  if (self.size() < s.size())
-    return BasicStringPiece<STR>::npos;
-
-  if (s.empty())
-    return std::min(self.size(), pos);
-
-  typename BasicStringPiece<STR>::const_iterator last =
-      self.begin() + std::min(self.size() - s.size(), pos) + s.size();
-  typename BasicStringPiece<STR>::const_iterator result =
-      std::find_end(self.begin(), last, s.begin(), s.end());
-  return result != last ?
-      static_cast<size_t>(result - self.begin()) : BasicStringPiece<STR>::npos;
-}
-
-size_t rfind(const StringPiece& self, const StringPiece& s, size_t pos) {
-  return rfindT(self, s, pos);
-}
-
-size_t rfind(const StringPiece16& self, const StringPiece16& s, size_t pos) {
-  return rfindT(self, s, pos);
-}
-
-template<typename STR>
-size_t rfindT(const BasicStringPiece<STR>& self,
-              typename STR::value_type c,
-              size_t pos) {
-  if (self.size() == 0)
-    return BasicStringPiece<STR>::npos;
-
-  for (size_t i = std::min(pos, self.size() - 1); ;
-       --i) {
-    if (self.data()[i] == c)
-      return i;
-    if (i == 0)
-      break;
-  }
-  return BasicStringPiece<STR>::npos;
-}
-
-size_t rfind(const StringPiece& self, char c, size_t pos) {
-  return rfindT(self, c, pos);
-}
-
-size_t rfind(const StringPiece16& self, char16 c, size_t pos) {
-  return rfindT(self, c, pos);
-}
-
-// 8-bit version using lookup table.
-size_t find_first_of(const StringPiece& self,
-                     const StringPiece& s,
-                     size_t pos) {
-  if (self.size() == 0 || s.size() == 0)
-    return StringPiece::npos;
-
-  // Avoid the cost of BuildLookupTable() for a single-character search.
-  if (s.size() == 1)
-    return find(self, s.data()[0], pos);
-
-  bool lookup[UCHAR_MAX + 1] = { false };
-  BuildLookupTable(s, lookup);
-  for (size_t i = pos; i < self.size(); ++i) {
-    if (lookup[static_cast<unsigned char>(self.data()[i])]) {
-      return i;
-    }
-  }
-  return StringPiece::npos;
-}
-
-// 16-bit brute force version.
-size_t find_first_of(const StringPiece16& self,
-                     const StringPiece16& s,
-                     size_t pos) {
-  StringPiece16::const_iterator found =
-      std::find_first_of(self.begin() + pos, self.end(), s.begin(), s.end());
-  if (found == self.end())
-    return StringPiece16::npos;
-  return found - self.begin();
-}
-
-// 8-bit version using lookup table.
-size_t find_first_not_of(const StringPiece& self,
-                         const StringPiece& s,
-                         size_t pos) {
-  if (self.size() == 0)
-    return StringPiece::npos;
-
-  if (s.size() == 0)
-    return 0;
-
-  // Avoid the cost of BuildLookupTable() for a single-character search.
-  if (s.size() == 1)
-    return find_first_not_of(self, s.data()[0], pos);
-
-  bool lookup[UCHAR_MAX + 1] = { false };
-  BuildLookupTable(s, lookup);
-  for (size_t i = pos; i < self.size(); ++i) {
-    if (!lookup[static_cast<unsigned char>(self.data()[i])]) {
-      return i;
-    }
-  }
-  return StringPiece::npos;
-}
-
-// 16-bit brute-force version.
-BASE_EXPORT size_t find_first_not_of(const StringPiece16& self,
-                                     const StringPiece16& s,
-                                     size_t pos) {
-  if (self.size() == 0)
-    return StringPiece16::npos;
-
-  for (size_t self_i = pos; self_i < self.size(); ++self_i) {
-    bool found = false;
-    for (size_t s_i = 0; s_i < s.size(); ++s_i) {
-      if (self[self_i] == s[s_i]) {
-        found = true;
-        break;
-      }
-    }
-    if (!found)
-      return self_i;
-  }
-  return StringPiece16::npos;
-}
-
-template<typename STR>
-size_t find_first_not_ofT(const BasicStringPiece<STR>& self,
-                          typename STR::value_type c,
-                          size_t pos) {
-  if (self.size() == 0)
-    return BasicStringPiece<STR>::npos;
-
-  for (; pos < self.size(); ++pos) {
-    if (self.data()[pos] != c) {
-      return pos;
-    }
-  }
-  return BasicStringPiece<STR>::npos;
-}
-
-size_t find_first_not_of(const StringPiece& self,
-                         char c,
-                         size_t pos) {
-  return find_first_not_ofT(self, c, pos);
-}
-
-size_t find_first_not_of(const StringPiece16& self,
-                         char16 c,
-                         size_t pos) {
-  return find_first_not_ofT(self, c, pos);
-}
-
-// 8-bit version using lookup table.
-size_t find_last_of(const StringPiece& self, const StringPiece& s, size_t pos) {
-  if (self.size() == 0 || s.size() == 0)
-    return StringPiece::npos;
-
-  // Avoid the cost of BuildLookupTable() for a single-character search.
-  if (s.size() == 1)
-    return rfind(self, s.data()[0], pos);
-
-  bool lookup[UCHAR_MAX + 1] = { false };
-  BuildLookupTable(s, lookup);
-  for (size_t i = std::min(pos, self.size() - 1); ; --i) {
-    if (lookup[static_cast<unsigned char>(self.data()[i])])
-      return i;
-    if (i == 0)
-      break;
-  }
-  return StringPiece::npos;
-}
-
-// 16-bit brute-force version.
-size_t find_last_of(const StringPiece16& self,
-                    const StringPiece16& s,
-                    size_t pos) {
-  if (self.size() == 0)
-    return StringPiece16::npos;
-
-  for (size_t self_i = std::min(pos, self.size() - 1); ;
-       --self_i) {
-    for (size_t s_i = 0; s_i < s.size(); s_i++) {
-      if (self.data()[self_i] == s[s_i])
-        return self_i;
-    }
-    if (self_i == 0)
-      break;
-  }
-  return StringPiece16::npos;
-}
-
-// 8-bit version using lookup table.
-size_t find_last_not_of(const StringPiece& self,
-                        const StringPiece& s,
-                        size_t pos) {
-  if (self.size() == 0)
-    return StringPiece::npos;
-
-  size_t i = std::min(pos, self.size() - 1);
-  if (s.size() == 0)
-    return i;
-
-  // Avoid the cost of BuildLookupTable() for a single-character search.
-  if (s.size() == 1)
-    return find_last_not_of(self, s.data()[0], pos);
-
-  bool lookup[UCHAR_MAX + 1] = { false };
-  BuildLookupTable(s, lookup);
-  for (; ; --i) {
-    if (!lookup[static_cast<unsigned char>(self.data()[i])])
-      return i;
-    if (i == 0)
-      break;
-  }
-  return StringPiece::npos;
-}
-
-// 16-bit brute-force version.
-size_t find_last_not_of(const StringPiece16& self,
-                        const StringPiece16& s,
-                        size_t pos) {
-  if (self.size() == 0)
-    return StringPiece::npos;
-
-  for (size_t self_i = std::min(pos, self.size() - 1); ; --self_i) {
-    bool found = false;
-    for (size_t s_i = 0; s_i < s.size(); s_i++) {
-      if (self.data()[self_i] == s[s_i]) {
-        found = true;
-        break;
-      }
-    }
-    if (!found)
-      return self_i;
-    if (self_i == 0)
-      break;
-  }
-  return StringPiece16::npos;
-}
-
-template<typename STR>
-size_t find_last_not_ofT(const BasicStringPiece<STR>& self,
-                         typename STR::value_type c,
-                         size_t pos) {
-  if (self.size() == 0)
-    return BasicStringPiece<STR>::npos;
-
-  for (size_t i = std::min(pos, self.size() - 1); ; --i) {
-    if (self.data()[i] != c)
-      return i;
-    if (i == 0)
-      break;
-  }
-  return BasicStringPiece<STR>::npos;
-}
-
-size_t find_last_not_of(const StringPiece& self,
-                        char c,
-                        size_t pos) {
-  return find_last_not_ofT(self, c, pos);
-}
-
-size_t find_last_not_of(const StringPiece16& self,
-                        char16 c,
-                        size_t pos) {
-  return find_last_not_ofT(self, c, pos);
-}
-
-template<typename STR>
-BasicStringPiece<STR> substrT(const BasicStringPiece<STR>& self,
-                              size_t pos,
-                              size_t n) {
-  if (pos > self.size()) pos = self.size();
-  if (n > self.size() - pos) n = self.size() - pos;
-  return BasicStringPiece<STR>(self.data() + pos, n);
-}
-
-StringPiece substr(const StringPiece& self,
-                   size_t pos,
-                   size_t n) {
-  return substrT(self, pos, n);
-}
-
-StringPiece16 substr(const StringPiece16& self,
-                     size_t pos,
-                     size_t n) {
-  return substrT(self, pos, n);
-}
-
-#if DCHECK_IS_ON()
-void AssertIteratorsInOrder(std::string::const_iterator begin,
-                            std::string::const_iterator end) {
-  DCHECK(begin <= end) << "StringPiece iterators swapped or invalid.";
-}
-void AssertIteratorsInOrder(string16::const_iterator begin,
-                            string16::const_iterator end) {
-  DCHECK(begin <= end) << "StringPiece iterators swapped or invalid.";
-}
-#endif
-
-}  // namespace internal
-}  // namespace base
diff --git a/security/sandbox/chromium/base/strings/string_piece.h b/security/sandbox/chromium/base/strings/string_piece.h
deleted file mode 100644
index 31e7596d1..000000000
--- a/security/sandbox/chromium/base/strings/string_piece.h
+++ /dev/null
@@ -1,469 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-// Copied from strings/stringpiece.h with modifications
-//
-// A string-like object that points to a sized piece of memory.
-//
-// You can use StringPiece as a function or method parameter.  A StringPiece
-// parameter can receive a double-quoted string literal argument, a "const
-// char*" argument, a string argument, or a StringPiece argument with no data
-// copying.  Systematic use of StringPiece for arguments reduces data
-// copies and strlen() calls.
-//
-// Prefer passing StringPieces by value:
-//   void MyFunction(StringPiece arg);
-// If circumstances require, you may also pass by const reference:
-//   void MyFunction(const StringPiece& arg);  // not preferred
-// Both of these have the same lifetime semantics.  Passing by value
-// generates slightly smaller code.  For more discussion, Googlers can see
-// the thread go/stringpiecebyvalue on c-users.
-
-#ifndef BASE_STRINGS_STRING_PIECE_H_
-#define BASE_STRINGS_STRING_PIECE_H_
-
-#include <stddef.h>
-
-#include <iosfwd>
-#include <string>
-
-#include "base/base_export.h"
-#include "base/containers/hash_tables.h"
-#include "base/logging.h"
-#include "base/strings/string16.h"
-
-namespace base {
-
-template <typename STRING_TYPE> class BasicStringPiece;
-typedef BasicStringPiece<std::string> StringPiece;
-typedef BasicStringPiece<string16> StringPiece16;
-
-// internal --------------------------------------------------------------------
-
-// Many of the StringPiece functions use different implementations for the
-// 8-bit and 16-bit versions, and we don't want lots of template expansions in
-// this (very common) header that will slow down compilation.
-//
-// So here we define overloaded functions called by the StringPiece template.
-// For those that share an implementation, the two versions will expand to a
-// template internal to the .cc file.
-namespace internal {
-
-BASE_EXPORT void CopyToString(const StringPiece& self, std::string* target);
-BASE_EXPORT void CopyToString(const StringPiece16& self, string16* target);
-
-BASE_EXPORT void AppendToString(const StringPiece& self, std::string* target);
-BASE_EXPORT void AppendToString(const StringPiece16& self, string16* target);
-
-BASE_EXPORT size_t copy(const StringPiece& self,
-                        char* buf,
-                        size_t n,
-                        size_t pos);
-BASE_EXPORT size_t copy(const StringPiece16& self,
-                        char16* buf,
-                        size_t n,
-                        size_t pos);
-
-BASE_EXPORT size_t find(const StringPiece& self,
-                        const StringPiece& s,
-                        size_t pos);
-BASE_EXPORT size_t find(const StringPiece16& self,
-                        const StringPiece16& s,
-                        size_t pos);
-BASE_EXPORT size_t find(const StringPiece& self,
-                        char c,
-                        size_t pos);
-BASE_EXPORT size_t find(const StringPiece16& self,
-                        char16 c,
-                        size_t pos);
-
-BASE_EXPORT size_t rfind(const StringPiece& self,
-                         const StringPiece& s,
-                         size_t pos);
-BASE_EXPORT size_t rfind(const StringPiece16& self,
-                         const StringPiece16& s,
-                         size_t pos);
-BASE_EXPORT size_t rfind(const StringPiece& self,
-                         char c,
-                         size_t pos);
-BASE_EXPORT size_t rfind(const StringPiece16& self,
-                         char16 c,
-                         size_t pos);
-
-BASE_EXPORT size_t find_first_of(const StringPiece& self,
-                                 const StringPiece& s,
-                                 size_t pos);
-BASE_EXPORT size_t find_first_of(const StringPiece16& self,
-                                 const StringPiece16& s,
-                                 size_t pos);
-
-BASE_EXPORT size_t find_first_not_of(const StringPiece& self,
-                                     const StringPiece& s,
-                                     size_t pos);
-BASE_EXPORT size_t find_first_not_of(const StringPiece16& self,
-                                     const StringPiece16& s,
-                                     size_t pos);
-BASE_EXPORT size_t find_first_not_of(const StringPiece& self,
-                                     char c,
-                                     size_t pos);
-BASE_EXPORT size_t find_first_not_of(const StringPiece16& self,
-                                     char16 c,
-                                     size_t pos);
-
-BASE_EXPORT size_t find_last_of(const StringPiece& self,
-                                const StringPiece& s,
-                                size_t pos);
-BASE_EXPORT size_t find_last_of(const StringPiece16& self,
-                                const StringPiece16& s,
-                                size_t pos);
-BASE_EXPORT size_t find_last_of(const StringPiece& self,
-                                char c,
-                                size_t pos);
-BASE_EXPORT size_t find_last_of(const StringPiece16& self,
-                                char16 c,
-                                size_t pos);
-
-BASE_EXPORT size_t find_last_not_of(const StringPiece& self,
-                                    const StringPiece& s,
-                                    size_t pos);
-BASE_EXPORT size_t find_last_not_of(const StringPiece16& self,
-                                    const StringPiece16& s,
-                                    size_t pos);
-BASE_EXPORT size_t find_last_not_of(const StringPiece16& self,
-                                    char16 c,
-                                    size_t pos);
-BASE_EXPORT size_t find_last_not_of(const StringPiece& self,
-                                    char c,
-                                    size_t pos);
-
-BASE_EXPORT StringPiece substr(const StringPiece& self,
-                               size_t pos,
-                               size_t n);
-BASE_EXPORT StringPiece16 substr(const StringPiece16& self,
-                                 size_t pos,
-                                 size_t n);
-
-#if DCHECK_IS_ON()
-// Asserts that begin <= end to catch some errors with iterator usage.
-BASE_EXPORT void AssertIteratorsInOrder(std::string::const_iterator begin,
-                                        std::string::const_iterator end);
-BASE_EXPORT void AssertIteratorsInOrder(string16::const_iterator begin,
-                                        string16::const_iterator end);
-#endif
-
-}  // namespace internal
-
-// BasicStringPiece ------------------------------------------------------------
-
-// Defines the types, methods, operators, and data members common to both
-// StringPiece and StringPiece16. Do not refer to this class directly, but
-// rather to BasicStringPiece, StringPiece, or StringPiece16.
-//
-// This is templatized by string class type rather than character type, so
-// BasicStringPiece<std::string> or BasicStringPiece<base::string16>.
-template <typename STRING_TYPE> class BasicStringPiece {
- public:
-  // Standard STL container boilerplate.
-  typedef size_t size_type;
-  typedef typename STRING_TYPE::value_type value_type;
-  typedef const value_type* pointer;
-  typedef const value_type& reference;
-  typedef const value_type& const_reference;
-  typedef ptrdiff_t difference_type;
-  typedef const value_type* const_iterator;
-  typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
-
-  static const size_type npos;
-
- public:
-  // We provide non-explicit singleton constructors so users can pass
-  // in a "const char*" or a "string" wherever a "StringPiece" is
-  // expected (likewise for char16, string16, StringPiece16).
-  BasicStringPiece() : ptr_(NULL), length_(0) {}
-  BasicStringPiece(const value_type* str)
-      : ptr_(str),
-        length_((str == NULL) ? 0 : STRING_TYPE::traits_type::length(str)) {}
-  BasicStringPiece(const STRING_TYPE& str)
-      : ptr_(str.data()), length_(str.size()) {}
-  BasicStringPiece(const value_type* offset, size_type len)
-      : ptr_(offset), length_(len) {}
-  BasicStringPiece(const typename STRING_TYPE::const_iterator& begin,
-                   const typename STRING_TYPE::const_iterator& end) {
-#if DCHECK_IS_ON()
-    // This assertion is done out-of-line to avoid bringing in logging.h and
-    // instantiating logging macros for every instantiation.
-    internal::AssertIteratorsInOrder(begin, end);
-#endif
-    length_ = static_cast<size_t>(std::distance(begin, end));
-
-    // The length test before assignment is to avoid dereferencing an iterator
-    // that may point to the end() of a string.
-    ptr_ = length_ > 0 ? &*begin : nullptr;
-  }
-
-  // data() may return a pointer to a buffer with embedded NULs, and the
-  // returned buffer may or may not be null terminated.  Therefore it is
-  // typically a mistake to pass data() to a routine that expects a NUL
-  // terminated string.
-  const value_type* data() const { return ptr_; }
-  size_type size() const { return length_; }
-  size_type length() const { return length_; }
-  bool empty() const { return length_ == 0; }
-
-  void clear() {
-    ptr_ = NULL;
-    length_ = 0;
-  }
-  void set(const value_type* data, size_type len) {
-    ptr_ = data;
-    length_ = len;
-  }
-  void set(const value_type* str) {
-    ptr_ = str;
-    length_ = str ? STRING_TYPE::traits_type::length(str) : 0;
-  }
-
-  value_type operator[](size_type i) const { return ptr_[i]; }
-
-  void remove_prefix(size_type n) {
-    ptr_ += n;
-    length_ -= n;
-  }
-
-  void remove_suffix(size_type n) {
-    length_ -= n;
-  }
-
-  int compare(const BasicStringPiece<STRING_TYPE>& x) const {
-    int r = wordmemcmp(
-        ptr_, x.ptr_, (length_ < x.length_ ? length_ : x.length_));
-    if (r == 0) {
-      if (length_ < x.length_) r = -1;
-      else if (length_ > x.length_) r = +1;
-    }
-    return r;
-  }
-
-  STRING_TYPE as_string() const {
-    // std::string doesn't like to take a NULL pointer even with a 0 size.
-    return empty() ? STRING_TYPE() : STRING_TYPE(data(), size());
-  }
-
-  const_iterator begin() const { return ptr_; }
-  const_iterator end() const { return ptr_ + length_; }
-  const_reverse_iterator rbegin() const {
-    return const_reverse_iterator(ptr_ + length_);
-  }
-  const_reverse_iterator rend() const {
-    return const_reverse_iterator(ptr_);
-  }
-
-  size_type max_size() const { return length_; }
-  size_type capacity() const { return length_; }
-
-  static int wordmemcmp(const value_type* p,
-                        const value_type* p2,
-                        size_type N) {
-    return STRING_TYPE::traits_type::compare(p, p2, N);
-  }
-
-  // Sets the value of the given string target type to be the current string.
-  // This saves a temporary over doing |a = b.as_string()|
-  void CopyToString(STRING_TYPE* target) const {
-    internal::CopyToString(*this, target);
-  }
-
-  void AppendToString(STRING_TYPE* target) const {
-    internal::AppendToString(*this, target);
-  }
-
-  size_type copy(value_type* buf, size_type n, size_type pos = 0) const {
-    return internal::copy(*this, buf, n, pos);
-  }
-
-  // Does "this" start with "x"
-  bool starts_with(const BasicStringPiece& x) const {
-    return ((this->length_ >= x.length_) &&
-            (wordmemcmp(this->ptr_, x.ptr_, x.length_) == 0));
-  }
-
-  // Does "this" end with "x"
-  bool ends_with(const BasicStringPiece& x) const {
-    return ((this->length_ >= x.length_) &&
-            (wordmemcmp(this->ptr_ + (this->length_-x.length_),
-                        x.ptr_, x.length_) == 0));
-  }
-
-  // find: Search for a character or substring at a given offset.
-  size_type find(const BasicStringPiece<STRING_TYPE>& s,
-                 size_type pos = 0) const {
-    return internal::find(*this, s, pos);
-  }
-  size_type find(value_type c, size_type pos = 0) const {
-    return internal::find(*this, c, pos);
-  }
-
-  // rfind: Reverse find.
-  size_type rfind(const BasicStringPiece& s,
-                  size_type pos = BasicStringPiece::npos) const {
-    return internal::rfind(*this, s, pos);
-  }
-  size_type rfind(value_type c, size_type pos = BasicStringPiece::npos) const {
-    return internal::rfind(*this, c, pos);
-  }
-
-  // find_first_of: Find the first occurence of one of a set of characters.
-  size_type find_first_of(const BasicStringPiece& s,
-                          size_type pos = 0) const {
-    return internal::find_first_of(*this, s, pos);
-  }
-  size_type find_first_of(value_type c, size_type pos = 0) const {
-    return find(c, pos);
-  }
-
-  // find_first_not_of: Find the first occurence not of a set of characters.
-  size_type find_first_not_of(const BasicStringPiece& s,
-                              size_type pos = 0) const {
-    return internal::find_first_not_of(*this, s, pos);
-  }
-  size_type find_first_not_of(value_type c, size_type pos = 0) const {
-    return internal::find_first_not_of(*this, c, pos);
-  }
-
-  // find_last_of: Find the last occurence of one of a set of characters.
-  size_type find_last_of(const BasicStringPiece& s,
-                         size_type pos = BasicStringPiece::npos) const {
-    return internal::find_last_of(*this, s, pos);
-  }
-  size_type find_last_of(value_type c,
-                         size_type pos = BasicStringPiece::npos) const {
-    return rfind(c, pos);
-  }
-
-  // find_last_not_of: Find the last occurence not of a set of characters.
-  size_type find_last_not_of(const BasicStringPiece& s,
-                             size_type pos = BasicStringPiece::npos) const {
-    return internal::find_last_not_of(*this, s, pos);
-  }
-  size_type find_last_not_of(value_type c,
-                             size_type pos = BasicStringPiece::npos) const {
-    return internal::find_last_not_of(*this, c, pos);
-  }
-
-  // substr.
-  BasicStringPiece substr(size_type pos,
-                          size_type n = BasicStringPiece::npos) const {
-    return internal::substr(*this, pos, n);
-  }
-
- protected:
-  const value_type* ptr_;
-  size_type     length_;
-};
-
-template <typename STRING_TYPE>
-const typename BasicStringPiece<STRING_TYPE>::size_type
-BasicStringPiece<STRING_TYPE>::npos =
-    typename BasicStringPiece<STRING_TYPE>::size_type(-1);
-
-// MSVC doesn't like complex extern templates and DLLs.
-#if !defined(COMPILER_MSVC)
-extern template class BASE_EXPORT BasicStringPiece<std::string>;
-extern template class BASE_EXPORT BasicStringPiece<string16>;
-#endif
-
-// StingPiece operators --------------------------------------------------------
-
-BASE_EXPORT bool operator==(const StringPiece& x, const StringPiece& y);
-
-inline bool operator!=(const StringPiece& x, const StringPiece& y) {
-  return !(x == y);
-}
-
-inline bool operator<(const StringPiece& x, const StringPiece& y) {
-  const int r = StringPiece::wordmemcmp(
-      x.data(), y.data(), (x.size() < y.size() ? x.size() : y.size()));
-  return ((r < 0) || ((r == 0) && (x.size() < y.size())));
-}
-
-inline bool operator>(const StringPiece& x, const StringPiece& y) {
-  return y < x;
-}
-
-inline bool operator<=(const StringPiece& x, const StringPiece& y) {
-  return !(x > y);
-}
-
-inline bool operator>=(const StringPiece& x, const StringPiece& y) {
-  return !(x < y);
-}
-
-// StringPiece16 operators -----------------------------------------------------
-
-inline bool operator==(const StringPiece16& x, const StringPiece16& y) {
-  if (x.size() != y.size())
-    return false;
-
-  return StringPiece16::wordmemcmp(x.data(), y.data(), x.size()) == 0;
-}
-
-inline bool operator!=(const StringPiece16& x, const StringPiece16& y) {
-  return !(x == y);
-}
-
-inline bool operator<(const StringPiece16& x, const StringPiece16& y) {
-  const int r = StringPiece16::wordmemcmp(
-      x.data(), y.data(), (x.size() < y.size() ? x.size() : y.size()));
-  return ((r < 0) || ((r == 0) && (x.size() < y.size())));
-}
-
-inline bool operator>(const StringPiece16& x, const StringPiece16& y) {
-  return y < x;
-}
-
-inline bool operator<=(const StringPiece16& x, const StringPiece16& y) {
-  return !(x > y);
-}
-
-inline bool operator>=(const StringPiece16& x, const StringPiece16& y) {
-  return !(x < y);
-}
-
-BASE_EXPORT std::ostream& operator<<(std::ostream& o,
-                                     const StringPiece& piece);
-
-}  // namespace base
-
-// Hashing ---------------------------------------------------------------------
-
-// We provide appropriate hash functions so StringPiece and StringPiece16 can
-// be used as keys in hash sets and maps.
-
-// This hash function is copied from base/containers/hash_tables.h. We don't
-// use the ones already defined for string and string16 directly because it
-// would require the string constructors to be called, which we don't want.
-#define HASH_STRING_PIECE(StringPieceType, string_piece)                \
-  std::size_t result = 0;                                               \
-  for (StringPieceType::const_iterator i = string_piece.begin();        \
-       i != string_piece.end(); ++i)                                    \
-    result = (result * 131) + *i;                                       \
-  return result;                                                        \
-
-namespace BASE_HASH_NAMESPACE {
-
-template<>
-struct hash<base::StringPiece> {
-  std::size_t operator()(const base::StringPiece& sp) const {
-    HASH_STRING_PIECE(base::StringPiece, sp);
-  }
-};
-template<>
-struct hash<base::StringPiece16> {
-  std::size_t operator()(const base::StringPiece16& sp16) const {
-    HASH_STRING_PIECE(base::StringPiece16, sp16);
-  }
-};
-
-}  // namespace BASE_HASH_NAMESPACE
-
-#endif  // BASE_STRINGS_STRING_PIECE_H_
diff --git a/security/sandbox/chromium/base/strings/string_split.cc b/security/sandbox/chromium/base/strings/string_split.cc
deleted file mode 100644
index 6c949b989..000000000
--- a/security/sandbox/chromium/base/strings/string_split.cc
+++ /dev/null
@@ -1,264 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/strings/string_split.h"
-
-#include <stddef.h>
-
-#include "base/logging.h"
-#include "base/strings/string_util.h"
-#include "base/third_party/icu/icu_utf.h"
-
-namespace base {
-
-namespace {
-
-// PieceToOutputType converts a StringPiece as needed to a given output type,
-// which is either the same type of StringPiece (a NOP) or the corresponding
-// non-piece string type.
-//
-// The default converter is a NOP, it works when the OutputType is the
-// correct StringPiece.
-template<typename Str, typename OutputType>
-OutputType PieceToOutputType(BasicStringPiece<Str> piece) {
-  return piece;
-}
-template<>  // Convert StringPiece to std::string
-std::string PieceToOutputType<std::string, std::string>(StringPiece piece) {
-  return piece.as_string();
-}
-template<>  // Convert StringPiece16 to string16.
-string16 PieceToOutputType<string16, string16>(StringPiece16 piece) {
-  return piece.as_string();
-}
-
-// Returns either the ASCII or UTF-16 whitespace.
-template<typename Str> BasicStringPiece<Str> WhitespaceForType();
-template<> StringPiece16 WhitespaceForType<string16>() {
-  return kWhitespaceUTF16;
-}
-template<> StringPiece WhitespaceForType<std::string>() {
-  return kWhitespaceASCII;
-}
-
-// Optimize the single-character case to call find() on the string instead,
-// since this is the common case and can be made faster. This could have been
-// done with template specialization too, but would have been less clear.
-//
-// There is no corresponding FindFirstNotOf because StringPiece already
-// implements these different versions that do the optimized searching.
-size_t FindFirstOf(StringPiece piece, char c, size_t pos) {
-  return piece.find(c, pos);
-}
-size_t FindFirstOf(StringPiece16 piece, char16 c, size_t pos) {
-  return piece.find(c, pos);
-}
-size_t FindFirstOf(StringPiece piece, StringPiece one_of, size_t pos) {
-  return piece.find_first_of(one_of, pos);
-}
-size_t FindFirstOf(StringPiece16 piece, StringPiece16 one_of, size_t pos) {
-  return piece.find_first_of(one_of, pos);
-}
-
-// General string splitter template. Can take 8- or 16-bit input, can produce
-// the corresponding string or StringPiece output, and can take single- or
-// multiple-character delimiters.
-//
-// DelimiterType is either a character (Str::value_type) or a string piece of
-// multiple characters (BasicStringPiece<Str>). StringPiece has a version of
-// find for both of these cases, and the single-character version is the most
-// common and can be implemented faster, which is why this is a template.
-template<typename Str, typename OutputStringType, typename DelimiterType>
-static std::vector<OutputStringType> SplitStringT(
-    BasicStringPiece<Str> str,
-    DelimiterType delimiter,
-    WhitespaceHandling whitespace,
-    SplitResult result_type) {
-  std::vector<OutputStringType> result;
-  if (str.empty())
-    return result;
-
-  size_t start = 0;
-  while (start != Str::npos) {
-    size_t end = FindFirstOf(str, delimiter, start);
-
-    BasicStringPiece<Str> piece;
-    if (end == Str::npos) {
-      piece = str.substr(start);
-      start = Str::npos;
-    } else {
-      piece = str.substr(start, end - start);
-      start = end + 1;
-    }
-
-    if (whitespace == TRIM_WHITESPACE)
-      piece = TrimString(piece, WhitespaceForType<Str>(), TRIM_ALL);
-
-    if (result_type == SPLIT_WANT_ALL || !piece.empty())
-      result.push_back(PieceToOutputType<Str, OutputStringType>(piece));
-  }
-  return result;
-}
-
-bool AppendStringKeyValue(StringPiece input,
-                          char delimiter,
-                          StringPairs* result) {
-  // Always append a new item regardless of success (it might be empty). The
-  // below code will copy the strings directly into the result pair.
-  result->resize(result->size() + 1);
-  auto& result_pair = result->back();
-
-  // Find the delimiter.
-  size_t end_key_pos = input.find_first_of(delimiter);
-  if (end_key_pos == std::string::npos) {
-    DVLOG(1) << "cannot find delimiter in: " << input;
-    return false;    // No delimiter.
-  }
-  input.substr(0, end_key_pos).CopyToString(&result_pair.first);
-
-  // Find the value string.
-  StringPiece remains = input.substr(end_key_pos, input.size() - end_key_pos);
-  size_t begin_value_pos = remains.find_first_not_of(delimiter);
-  if (begin_value_pos == StringPiece::npos) {
-    DVLOG(1) << "cannot parse value from input: " << input;
-    return false;   // No value.
-  }
-  remains.substr(begin_value_pos, remains.size() - begin_value_pos)
-      .CopyToString(&result_pair.second);
-
-  return true;
-}
-
-template <typename Str, typename OutputStringType>
-void SplitStringUsingSubstrT(BasicStringPiece<Str> input,
-                             BasicStringPiece<Str> delimiter,
-                             WhitespaceHandling whitespace,
-                             SplitResult result_type,
-                             std::vector<OutputStringType>* result) {
-  using Piece = BasicStringPiece<Str>;
-  using size_type = typename Piece::size_type;
-
-  result->clear();
-  for (size_type begin_index = 0, end_index = 0; end_index != Piece::npos;
-       begin_index = end_index + delimiter.size()) {
-    end_index = input.find(delimiter, begin_index);
-    Piece term = end_index == Piece::npos
-                     ? input.substr(begin_index)
-                     : input.substr(begin_index, end_index - begin_index);
-
-    if (whitespace == TRIM_WHITESPACE)
-      term = TrimString(term, WhitespaceForType<Str>(), TRIM_ALL);
-
-    if (result_type == SPLIT_WANT_ALL || !term.empty())
-      result->push_back(PieceToOutputType<Str, OutputStringType>(term));
-  }
-}
-
-}  // namespace
-
-std::vector<std::string> SplitString(StringPiece input,
-                                     StringPiece separators,
-                                     WhitespaceHandling whitespace,
-                                     SplitResult result_type) {
-  if (separators.size() == 1) {
-    return SplitStringT<std::string, std::string, char>(
-        input, separators[0], whitespace, result_type);
-  }
-  return SplitStringT<std::string, std::string, StringPiece>(
-      input, separators, whitespace, result_type);
-}
-
-std::vector<string16> SplitString(StringPiece16 input,
-                                  StringPiece16 separators,
-                                  WhitespaceHandling whitespace,
-                                  SplitResult result_type) {
-  if (separators.size() == 1) {
-    return SplitStringT<string16, string16, char16>(
-        input, separators[0], whitespace, result_type);
-  }
-  return SplitStringT<string16, string16, StringPiece16>(
-      input, separators, whitespace, result_type);
-}
-
-std::vector<StringPiece> SplitStringPiece(StringPiece input,
-                                          StringPiece separators,
-                                          WhitespaceHandling whitespace,
-                                          SplitResult result_type) {
-  if (separators.size() == 1) {
-    return SplitStringT<std::string, StringPiece, char>(
-        input, separators[0], whitespace, result_type);
-  }
-  return SplitStringT<std::string, StringPiece, StringPiece>(
-      input, separators, whitespace, result_type);
-}
-
-std::vector<StringPiece16> SplitStringPiece(StringPiece16 input,
-                                            StringPiece16 separators,
-                                            WhitespaceHandling whitespace,
-                                            SplitResult result_type) {
-  if (separators.size() == 1) {
-    return SplitStringT<string16, StringPiece16, char16>(
-        input, separators[0], whitespace, result_type);
-  }
-  return SplitStringT<string16, StringPiece16, StringPiece16>(
-      input, separators, whitespace, result_type);
-}
-
-bool SplitStringIntoKeyValuePairs(StringPiece input,
-                                  char key_value_delimiter,
-                                  char key_value_pair_delimiter,
-                                  StringPairs* key_value_pairs) {
-  key_value_pairs->clear();
-
-  std::vector<StringPiece> pairs = SplitStringPiece(
-      input, std::string(1, key_value_pair_delimiter),
-      TRIM_WHITESPACE, SPLIT_WANT_NONEMPTY);
-  key_value_pairs->reserve(pairs.size());
-
-  bool success = true;
-  for (const StringPiece& pair : pairs) {
-    if (!AppendStringKeyValue(pair, key_value_delimiter, key_value_pairs)) {
-      // Don't return here, to allow for pairs without associated
-      // value or key; just record that the split failed.
-      success = false;
-    }
-  }
-  return success;
-}
-
-void SplitStringUsingSubstr(StringPiece16 input,
-                            StringPiece16 delimiter,
-                            std::vector<string16>* result) {
-  SplitStringUsingSubstrT(input, delimiter, TRIM_WHITESPACE, SPLIT_WANT_ALL,
-                          result);
-}
-
-void SplitStringUsingSubstr(StringPiece input,
-                            StringPiece delimiter,
-                            std::vector<std::string>* result) {
-  SplitStringUsingSubstrT(input, delimiter, TRIM_WHITESPACE, SPLIT_WANT_ALL,
-                          result);
-}
-
-std::vector<StringPiece16> SplitStringPieceUsingSubstr(
-    StringPiece16 input,
-    StringPiece16 delimiter,
-    WhitespaceHandling whitespace,
-    SplitResult result_type) {
-  std::vector<StringPiece16> result;
-  SplitStringUsingSubstrT(input, delimiter, whitespace, result_type, &result);
-  return result;
-}
-
-std::vector<StringPiece> SplitStringPieceUsingSubstr(
-    StringPiece input,
-    StringPiece delimiter,
-    WhitespaceHandling whitespace,
-    SplitResult result_type) {
-  std::vector<StringPiece> result;
-  SplitStringUsingSubstrT(input, delimiter, whitespace, result_type, &result);
-  return result;
-}
-
-}  // namespace base
diff --git a/security/sandbox/chromium/base/strings/string_split.h b/security/sandbox/chromium/base/strings/string_split.h
deleted file mode 100644
index ec9f24604..000000000
--- a/security/sandbox/chromium/base/strings/string_split.h
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BASE_STRINGS_STRING_SPLIT_H_
-#define BASE_STRINGS_STRING_SPLIT_H_
-
-#include <string>
-#include <utility>
-#include <vector>
-
-#include "base/base_export.h"
-#include "base/strings/string16.h"
-#include "base/strings/string_piece.h"
-
-namespace base {
-
-enum WhitespaceHandling {
-  KEEP_WHITESPACE,
-  TRIM_WHITESPACE,
-};
-
-enum SplitResult {
-  // Strictly return all results.
-  //
-  // If the input is ",," and the separator is ',' this will return a
-  // vector of three empty strings.
-  SPLIT_WANT_ALL,
-
-  // Only nonempty results will be added to the results. Multiple separators
-  // will be coalesced. Separators at the beginning and end of the input will
-  // be ignored. With TRIM_WHITESPACE, whitespace-only results will be dropped.
-  //
-  // If the input is ",," and the separator is ',', this will return an empty
-  // vector.
-  SPLIT_WANT_NONEMPTY,
-};
-
-// Split the given string on ANY of the given separators, returning copies of
-// the result.
-//
-// To split on either commas or semicolons, keeping all whitespace:
-//
-//   std::vector<std::string> tokens = base::SplitString(
-//       input, ",;", base::KEEP_WHITESPACE, base::SPLIT_WANT_ALL);
-BASE_EXPORT std::vector<std::string> SplitString(
-    StringPiece input,
-    StringPiece separators,
-    WhitespaceHandling whitespace,
-    SplitResult result_type);
-BASE_EXPORT std::vector<string16> SplitString(
-    StringPiece16 input,
-    StringPiece16 separators,
-    WhitespaceHandling whitespace,
-    SplitResult result_type);
-
-// Like SplitString above except it returns a vector of StringPieces which
-// reference the original buffer without copying. Although you have to be
-// careful to keep the original string unmodified, this provides an efficient
-// way to iterate through tokens in a string.
-//
-// To iterate through all whitespace-separated tokens in an input string:
-//
-//   for (const auto& cur :
-//        base::SplitStringPiece(input, base::kWhitespaceASCII,
-//                               base::KEEP_WHITESPACE,
-//                               base::SPLIT_WANT_NONEMPTY)) {
-//     ...
-BASE_EXPORT std::vector<StringPiece> SplitStringPiece(
-    StringPiece input,
-    StringPiece separators,
-    WhitespaceHandling whitespace,
-    SplitResult result_type);
-BASE_EXPORT std::vector<StringPiece16> SplitStringPiece(
-    StringPiece16 input,
-    StringPiece16 separators,
-    WhitespaceHandling whitespace,
-    SplitResult result_type);
-
-using StringPairs = std::vector<std::pair<std::string, std::string>>;
-
-// Splits |line| into key value pairs according to the given delimiters and
-// removes whitespace leading each key and trailing each value. Returns true
-// only if each pair has a non-empty key and value. |key_value_pairs| will
-// include ("","") pairs for entries without |key_value_delimiter|.
-BASE_EXPORT bool SplitStringIntoKeyValuePairs(StringPiece input,
-                                              char key_value_delimiter,
-                                              char key_value_pair_delimiter,
-                                              StringPairs* key_value_pairs);
-
-// Similar to SplitString, but use a substring delimiter instead of a list of
-// characters that are all possible delimiters.
-//
-// TODO(brettw) this should probably be changed and expanded to provide a
-// mirror of the SplitString[Piece] API above, just with the different
-// delimiter handling.
-BASE_EXPORT void SplitStringUsingSubstr(StringPiece16 input,
-                                        StringPiece16 delimiter,
-                                        std::vector<string16>* result);
-BASE_EXPORT void SplitStringUsingSubstr(StringPiece input,
-                                        StringPiece delimiter,
-                                        std::vector<std::string>* result);
-
-// Like SplitStringUsingSubstr above except it returns a vector of StringPieces
-// which reference the original buffer without copying. Although you have to be
-// careful to keep the original string unmodified, this provides an efficient
-// way to iterate through tokens in a string.
-//
-// To iterate through all newline-separated tokens in an input string:
-//
-//   for (const auto& cur :
-//        base::SplitStringUsingSubstr(input, "\r\n",
-//                                     base::KEEP_WHITESPACE,
-//                                     base::SPLIT_WANT_NONEMPTY)) {
-//     ...
-BASE_EXPORT std::vector<StringPiece16> SplitStringPieceUsingSubstr(
-    StringPiece16 input,
-    StringPiece16 delimiter,
-    WhitespaceHandling whitespace,
-    SplitResult result_type);
-BASE_EXPORT std::vector<StringPiece> SplitStringPieceUsingSubstr(
-    StringPiece input,
-    StringPiece delimiter,
-    WhitespaceHandling whitespace,
-    SplitResult result_type);
-
-}  // namespace base
-
-#endif  // BASE_STRINGS_STRING_SPLIT_H_
diff --git a/security/sandbox/chromium/base/strings/string_util.cc b/security/sandbox/chromium/base/strings/string_util.cc
deleted file mode 100644
index e8000abd4..000000000
--- a/security/sandbox/chromium/base/strings/string_util.cc
+++ /dev/null
@@ -1,1001 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/strings/string_util.h"
-
-#include <ctype.h>
-#include <errno.h>
-#include <math.h>
-#include <stdarg.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <wchar.h>
-#include <wctype.h>
-
-#include <algorithm>
-#include <limits>
-#include <vector>
-
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/memory/singleton.h"
-#include "base/strings/string_split.h"
-#include "base/strings/utf_string_conversion_utils.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/third_party/icu/icu_utf.h"
-#include "build/build_config.h"
-
-namespace base {
-
-namespace {
-
-// Force the singleton used by EmptyString[16] to be a unique type. This
-// prevents other code that might accidentally use Singleton<string> from
-// getting our internal one.
-struct EmptyStrings {
-  EmptyStrings() {}
-  const std::string s;
-  const string16 s16;
-
-  static EmptyStrings* GetInstance() {
-    return Singleton<EmptyStrings>::get();
-  }
-};
-
-// Used by ReplaceStringPlaceholders to track the position in the string of
-// replaced parameters.
-struct ReplacementOffset {
-  ReplacementOffset(uintptr_t parameter, size_t offset)
-      : parameter(parameter),
-        offset(offset) {}
-
-  // Index of the parameter.
-  uintptr_t parameter;
-
-  // Starting position in the string.
-  size_t offset;
-};
-
-static bool CompareParameter(const ReplacementOffset& elem1,
-                             const ReplacementOffset& elem2) {
-  return elem1.parameter < elem2.parameter;
-}
-
-// Assuming that a pointer is the size of a "machine word", then
-// uintptr_t is an integer type that is also a machine word.
-typedef uintptr_t MachineWord;
-const uintptr_t kMachineWordAlignmentMask = sizeof(MachineWord) - 1;
-
-inline bool IsAlignedToMachineWord(const void* pointer) {
-  return !(reinterpret_cast<MachineWord>(pointer) & kMachineWordAlignmentMask);
-}
-
-template<typename T> inline T* AlignToMachineWord(T* pointer) {
-  return reinterpret_cast<T*>(reinterpret_cast<MachineWord>(pointer) &
-                              ~kMachineWordAlignmentMask);
-}
-
-template<size_t size, typename CharacterType> struct NonASCIIMask;
-template<> struct NonASCIIMask<4, char16> {
-    static inline uint32_t value() { return 0xFF80FF80U; }
-};
-template<> struct NonASCIIMask<4, char> {
-    static inline uint32_t value() { return 0x80808080U; }
-};
-template<> struct NonASCIIMask<8, char16> {
-    static inline uint64_t value() { return 0xFF80FF80FF80FF80ULL; }
-};
-template<> struct NonASCIIMask<8, char> {
-    static inline uint64_t value() { return 0x8080808080808080ULL; }
-};
-#if defined(WCHAR_T_IS_UTF32)
-template<> struct NonASCIIMask<4, wchar_t> {
-    static inline uint32_t value() { return 0xFFFFFF80U; }
-};
-template<> struct NonASCIIMask<8, wchar_t> {
-    static inline uint64_t value() { return 0xFFFFFF80FFFFFF80ULL; }
-};
-#endif  // WCHAR_T_IS_UTF32
-
-}  // namespace
-
-bool IsWprintfFormatPortable(const wchar_t* format) {
-  for (const wchar_t* position = format; *position != '\0'; ++position) {
-    if (*position == '%') {
-      bool in_specification = true;
-      bool modifier_l = false;
-      while (in_specification) {
-        // Eat up characters until reaching a known specifier.
-        if (*++position == '\0') {
-          // The format string ended in the middle of a specification.  Call
-          // it portable because no unportable specifications were found.  The
-          // string is equally broken on all platforms.
-          return true;
-        }
-
-        if (*position == 'l') {
-          // 'l' is the only thing that can save the 's' and 'c' specifiers.
-          modifier_l = true;
-        } else if (((*position == 's' || *position == 'c') && !modifier_l) ||
-                   *position == 'S' || *position == 'C' || *position == 'F' ||
-                   *position == 'D' || *position == 'O' || *position == 'U') {
-          // Not portable.
-          return false;
-        }
-
-        if (wcschr(L"diouxXeEfgGaAcspn%", *position)) {
-          // Portable, keep scanning the rest of the format string.
-          in_specification = false;
-        }
-      }
-    }
-  }
-
-  return true;
-}
-
-namespace {
-
-template<typename StringType>
-StringType ToLowerASCIIImpl(BasicStringPiece<StringType> str) {
-  StringType ret;
-  ret.reserve(str.size());
-  for (size_t i = 0; i < str.size(); i++)
-    ret.push_back(ToLowerASCII(str[i]));
-  return ret;
-}
-
-template<typename StringType>
-StringType ToUpperASCIIImpl(BasicStringPiece<StringType> str) {
-  StringType ret;
-  ret.reserve(str.size());
-  for (size_t i = 0; i < str.size(); i++)
-    ret.push_back(ToUpperASCII(str[i]));
-  return ret;
-}
-
-}  // namespace
-
-std::string ToLowerASCII(StringPiece str) {
-  return ToLowerASCIIImpl<std::string>(str);
-}
-
-string16 ToLowerASCII(StringPiece16 str) {
-  return ToLowerASCIIImpl<string16>(str);
-}
-
-std::string ToUpperASCII(StringPiece str) {
-  return ToUpperASCIIImpl<std::string>(str);
-}
-
-string16 ToUpperASCII(StringPiece16 str) {
-  return ToUpperASCIIImpl<string16>(str);
-}
-
-template<class StringType>
-int CompareCaseInsensitiveASCIIT(BasicStringPiece<StringType> a,
-                                 BasicStringPiece<StringType> b) {
-  // Find the first characters that aren't equal and compare them.  If the end
-  // of one of the strings is found before a nonequal character, the lengths
-  // of the strings are compared.
-  size_t i = 0;
-  while (i < a.length() && i < b.length()) {
-    typename StringType::value_type lower_a = ToLowerASCII(a[i]);
-    typename StringType::value_type lower_b = ToLowerASCII(b[i]);
-    if (lower_a < lower_b)
-      return -1;
-    if (lower_a > lower_b)
-      return 1;
-    i++;
-  }
-
-  // End of one string hit before finding a different character. Expect the
-  // common case to be "strings equal" at this point so check that first.
-  if (a.length() == b.length())
-    return 0;
-
-  if (a.length() < b.length())
-    return -1;
-  return 1;
-}
-
-int CompareCaseInsensitiveASCII(StringPiece a, StringPiece b) {
-  return CompareCaseInsensitiveASCIIT<std::string>(a, b);
-}
-
-int CompareCaseInsensitiveASCII(StringPiece16 a, StringPiece16 b) {
-  return CompareCaseInsensitiveASCIIT<string16>(a, b);
-}
-
-bool EqualsCaseInsensitiveASCII(StringPiece a, StringPiece b) {
-  if (a.length() != b.length())
-    return false;
-  return CompareCaseInsensitiveASCIIT<std::string>(a, b) == 0;
-}
-
-bool EqualsCaseInsensitiveASCII(StringPiece16 a, StringPiece16 b) {
-  if (a.length() != b.length())
-    return false;
-  return CompareCaseInsensitiveASCIIT<string16>(a, b) == 0;
-}
-
-const std::string& EmptyString() {
-  return EmptyStrings::GetInstance()->s;
-}
-
-const string16& EmptyString16() {
-  return EmptyStrings::GetInstance()->s16;
-}
-
-template<typename STR>
-bool ReplaceCharsT(const STR& input,
-                   const STR& replace_chars,
-                   const STR& replace_with,
-                   STR* output) {
-  bool removed = false;
-  size_t replace_length = replace_with.length();
-
-  *output = input;
-
-  size_t found = output->find_first_of(replace_chars);
-  while (found != STR::npos) {
-    removed = true;
-    output->replace(found, 1, replace_with);
-    found = output->find_first_of(replace_chars, found + replace_length);
-  }
-
-  return removed;
-}
-
-bool ReplaceChars(const string16& input,
-                  const StringPiece16& replace_chars,
-                  const string16& replace_with,
-                  string16* output) {
-  return ReplaceCharsT(input, replace_chars.as_string(), replace_with, output);
-}
-
-bool ReplaceChars(const std::string& input,
-                  const StringPiece& replace_chars,
-                  const std::string& replace_with,
-                  std::string* output) {
-  return ReplaceCharsT(input, replace_chars.as_string(), replace_with, output);
-}
-
-bool RemoveChars(const string16& input,
-                 const StringPiece16& remove_chars,
-                 string16* output) {
-  return ReplaceChars(input, remove_chars.as_string(), string16(), output);
-}
-
-bool RemoveChars(const std::string& input,
-                 const StringPiece& remove_chars,
-                 std::string* output) {
-  return ReplaceChars(input, remove_chars.as_string(), std::string(), output);
-}
-
-template<typename Str>
-TrimPositions TrimStringT(const Str& input,
-                          BasicStringPiece<Str> trim_chars,
-                          TrimPositions positions,
-                          Str* output) {
-  // Find the edges of leading/trailing whitespace as desired. Need to use
-  // a StringPiece version of input to be able to call find* on it with the
-  // StringPiece version of trim_chars (normally the trim_chars will be a
-  // constant so avoid making a copy).
-  BasicStringPiece<Str> input_piece(input);
-  const size_t last_char = input.length() - 1;
-  const size_t first_good_char = (positions & TRIM_LEADING) ?
-      input_piece.find_first_not_of(trim_chars) : 0;
-  const size_t last_good_char = (positions & TRIM_TRAILING) ?
-      input_piece.find_last_not_of(trim_chars) : last_char;
-
-  // When the string was all trimmed, report that we stripped off characters
-  // from whichever position the caller was interested in. For empty input, we
-  // stripped no characters, but we still need to clear |output|.
-  if (input.empty() ||
-      (first_good_char == Str::npos) || (last_good_char == Str::npos)) {
-    bool input_was_empty = input.empty();  // in case output == &input
-    output->clear();
-    return input_was_empty ? TRIM_NONE : positions;
-  }
-
-  // Trim.
-  *output =
-      input.substr(first_good_char, last_good_char - first_good_char + 1);
-
-  // Return where we trimmed from.
-  return static_cast<TrimPositions>(
-      ((first_good_char == 0) ? TRIM_NONE : TRIM_LEADING) |
-      ((last_good_char == last_char) ? TRIM_NONE : TRIM_TRAILING));
-}
-
-bool TrimString(const string16& input,
-                StringPiece16 trim_chars,
-                string16* output) {
-  return TrimStringT(input, trim_chars, TRIM_ALL, output) != TRIM_NONE;
-}
-
-bool TrimString(const std::string& input,
-                StringPiece trim_chars,
-                std::string* output) {
-  return TrimStringT(input, trim_chars, TRIM_ALL, output) != TRIM_NONE;
-}
-
-template<typename Str>
-BasicStringPiece<Str> TrimStringPieceT(BasicStringPiece<Str> input,
-                                       BasicStringPiece<Str> trim_chars,
-                                       TrimPositions positions) {
-  size_t begin = (positions & TRIM_LEADING) ?
-      input.find_first_not_of(trim_chars) : 0;
-  size_t end = (positions & TRIM_TRAILING) ?
-      input.find_last_not_of(trim_chars) + 1 : input.size();
-  return input.substr(begin, end - begin);
-}
-
-StringPiece16 TrimString(StringPiece16 input,
-                         const StringPiece16& trim_chars,
-                         TrimPositions positions) {
-  return TrimStringPieceT(input, trim_chars, positions);
-}
-
-StringPiece TrimString(StringPiece input,
-                       const StringPiece& trim_chars,
-                       TrimPositions positions) {
-  return TrimStringPieceT(input, trim_chars, positions);
-}
-
-void TruncateUTF8ToByteSize(const std::string& input,
-                            const size_t byte_size,
-                            std::string* output) {
-  DCHECK(output);
-  if (byte_size > input.length()) {
-    *output = input;
-    return;
-  }
-  DCHECK_LE(byte_size,
-            static_cast<uint32_t>(std::numeric_limits<int32_t>::max()));
-  // Note: This cast is necessary because CBU8_NEXT uses int32_ts.
-  int32_t truncation_length = static_cast<int32_t>(byte_size);
-  int32_t char_index = truncation_length - 1;
-  const char* data = input.data();
-
-  // Using CBU8, we will move backwards from the truncation point
-  // to the beginning of the string looking for a valid UTF8
-  // character.  Once a full UTF8 character is found, we will
-  // truncate the string to the end of that character.
-  while (char_index >= 0) {
-    int32_t prev = char_index;
-    base_icu::UChar32 code_point = 0;
-    CBU8_NEXT(data, char_index, truncation_length, code_point);
-    if (!IsValidCharacter(code_point) ||
-        !IsValidCodepoint(code_point)) {
-      char_index = prev - 1;
-    } else {
-      break;
-    }
-  }
-
-  if (char_index >= 0 )
-    *output = input.substr(0, char_index);
-  else
-    output->clear();
-}
-
-TrimPositions TrimWhitespace(const string16& input,
-                             TrimPositions positions,
-                             string16* output) {
-  return TrimStringT(input, StringPiece16(kWhitespaceUTF16), positions, output);
-}
-
-StringPiece16 TrimWhitespace(StringPiece16 input,
-                             TrimPositions positions) {
-  return TrimStringPieceT(input, StringPiece16(kWhitespaceUTF16), positions);
-}
-
-TrimPositions TrimWhitespaceASCII(const std::string& input,
-                                  TrimPositions positions,
-                                  std::string* output) {
-  return TrimStringT(input, StringPiece(kWhitespaceASCII), positions, output);
-}
-
-StringPiece TrimWhitespaceASCII(StringPiece input, TrimPositions positions) {
-  return TrimStringPieceT(input, StringPiece(kWhitespaceASCII), positions);
-}
-
-template<typename STR>
-STR CollapseWhitespaceT(const STR& text,
-                        bool trim_sequences_with_line_breaks) {
-  STR result;
-  result.resize(text.size());
-
-  // Set flags to pretend we're already in a trimmed whitespace sequence, so we
-  // will trim any leading whitespace.
-  bool in_whitespace = true;
-  bool already_trimmed = true;
-
-  int chars_written = 0;
-  for (typename STR::const_iterator i(text.begin()); i != text.end(); ++i) {
-    if (IsUnicodeWhitespace(*i)) {
-      if (!in_whitespace) {
-        // Reduce all whitespace sequences to a single space.
-        in_whitespace = true;
-        result[chars_written++] = L' ';
-      }
-      if (trim_sequences_with_line_breaks && !already_trimmed &&
-          ((*i == '\n') || (*i == '\r'))) {
-        // Whitespace sequences containing CR or LF are eliminated entirely.
-        already_trimmed = true;
-        --chars_written;
-      }
-    } else {
-      // Non-whitespace chracters are copied straight across.
-      in_whitespace = false;
-      already_trimmed = false;
-      result[chars_written++] = *i;
-    }
-  }
-
-  if (in_whitespace && !already_trimmed) {
-    // Any trailing whitespace is eliminated.
-    --chars_written;
-  }
-
-  result.resize(chars_written);
-  return result;
-}
-
-string16 CollapseWhitespace(const string16& text,
-                            bool trim_sequences_with_line_breaks) {
-  return CollapseWhitespaceT(text, trim_sequences_with_line_breaks);
-}
-
-std::string CollapseWhitespaceASCII(const std::string& text,
-                                    bool trim_sequences_with_line_breaks) {
-  return CollapseWhitespaceT(text, trim_sequences_with_line_breaks);
-}
-
-bool ContainsOnlyChars(const StringPiece& input,
-                       const StringPiece& characters) {
-  return input.find_first_not_of(characters) == StringPiece::npos;
-}
-
-bool ContainsOnlyChars(const StringPiece16& input,
-                       const StringPiece16& characters) {
-  return input.find_first_not_of(characters) == StringPiece16::npos;
-}
-
-template <class Char>
-inline bool DoIsStringASCII(const Char* characters, size_t length) {
-  MachineWord all_char_bits = 0;
-  const Char* end = characters + length;
-
-  // Prologue: align the input.
-  while (!IsAlignedToMachineWord(characters) && characters != end) {
-    all_char_bits |= *characters;
-    ++characters;
-  }
-
-  // Compare the values of CPU word size.
-  const Char* word_end = AlignToMachineWord(end);
-  const size_t loop_increment = sizeof(MachineWord) / sizeof(Char);
-  while (characters < word_end) {
-    all_char_bits |= *(reinterpret_cast<const MachineWord*>(characters));
-    characters += loop_increment;
-  }
-
-  // Process the remaining bytes.
-  while (characters != end) {
-    all_char_bits |= *characters;
-    ++characters;
-  }
-
-  MachineWord non_ascii_bit_mask =
-      NonASCIIMask<sizeof(MachineWord), Char>::value();
-  return !(all_char_bits & non_ascii_bit_mask);
-}
-
-bool IsStringASCII(const StringPiece& str) {
-  return DoIsStringASCII(str.data(), str.length());
-}
-
-bool IsStringASCII(const StringPiece16& str) {
-  return DoIsStringASCII(str.data(), str.length());
-}
-
-bool IsStringASCII(const string16& str) {
-  return DoIsStringASCII(str.data(), str.length());
-}
-
-#if defined(WCHAR_T_IS_UTF32)
-bool IsStringASCII(const std::wstring& str) {
-  return DoIsStringASCII(str.data(), str.length());
-}
-#endif
-
-bool IsStringUTF8(const StringPiece& str) {
-  const char *src = str.data();
-  int32_t src_len = static_cast<int32_t>(str.length());
-  int32_t char_index = 0;
-
-  while (char_index < src_len) {
-    int32_t code_point;
-    CBU8_NEXT(src, char_index, src_len, code_point);
-    if (!IsValidCharacter(code_point))
-      return false;
-  }
-  return true;
-}
-
-// Implementation note: Normally this function will be called with a hardcoded
-// constant for the lowercase_ascii parameter. Constructing a StringPiece from
-// a C constant requires running strlen, so the result will be two passes
-// through the buffers, one to file the length of lowercase_ascii, and one to
-// compare each letter.
-//
-// This function could have taken a const char* to avoid this and only do one
-// pass through the string. But the strlen is faster than the case-insensitive
-// compares and lets us early-exit in the case that the strings are different
-// lengths (will often be the case for non-matches). So whether one approach or
-// the other will be faster depends on the case.
-//
-// The hardcoded strings are typically very short so it doesn't matter, and the
-// string piece gives additional flexibility for the caller (doesn't have to be
-// null terminated) so we choose the StringPiece route.
-template<typename Str>
-static inline bool DoLowerCaseEqualsASCII(BasicStringPiece<Str> str,
-                                          StringPiece lowercase_ascii) {
-  if (str.size() != lowercase_ascii.size())
-    return false;
-  for (size_t i = 0; i < str.size(); i++) {
-    if (ToLowerASCII(str[i]) != lowercase_ascii[i])
-      return false;
-  }
-  return true;
-}
-
-bool LowerCaseEqualsASCII(StringPiece str, StringPiece lowercase_ascii) {
-  return DoLowerCaseEqualsASCII<std::string>(str, lowercase_ascii);
-}
-
-bool LowerCaseEqualsASCII(StringPiece16 str, StringPiece lowercase_ascii) {
-  return DoLowerCaseEqualsASCII<string16>(str, lowercase_ascii);
-}
-
-bool EqualsASCII(StringPiece16 str, StringPiece ascii) {
-  if (str.length() != ascii.length())
-    return false;
-  return std::equal(ascii.begin(), ascii.end(), str.begin());
-}
-
-template<typename Str>
-bool StartsWithT(BasicStringPiece<Str> str,
-                 BasicStringPiece<Str> search_for,
-                 CompareCase case_sensitivity) {
-  if (search_for.size() > str.size())
-    return false;
-
-  BasicStringPiece<Str> source = str.substr(0, search_for.size());
-
-  switch (case_sensitivity) {
-    case CompareCase::SENSITIVE:
-      return source == search_for;
-
-    case CompareCase::INSENSITIVE_ASCII:
-      return std::equal(
-          search_for.begin(), search_for.end(),
-          source.begin(),
-          CaseInsensitiveCompareASCII<typename Str::value_type>());
-
-    default:
-      NOTREACHED();
-      return false;
-  }
-}
-
-bool StartsWith(StringPiece str,
-                StringPiece search_for,
-                CompareCase case_sensitivity) {
-  return StartsWithT<std::string>(str, search_for, case_sensitivity);
-}
-
-bool StartsWith(StringPiece16 str,
-                StringPiece16 search_for,
-                CompareCase case_sensitivity) {
-  return StartsWithT<string16>(str, search_for, case_sensitivity);
-}
-
-template <typename Str>
-bool EndsWithT(BasicStringPiece<Str> str,
-               BasicStringPiece<Str> search_for,
-               CompareCase case_sensitivity) {
-  if (search_for.size() > str.size())
-    return false;
-
-  BasicStringPiece<Str> source = str.substr(str.size() - search_for.size(),
-                                            search_for.size());
-
-  switch (case_sensitivity) {
-    case CompareCase::SENSITIVE:
-      return source == search_for;
-
-    case CompareCase::INSENSITIVE_ASCII:
-      return std::equal(
-          source.begin(), source.end(),
-          search_for.begin(),
-          CaseInsensitiveCompareASCII<typename Str::value_type>());
-
-    default:
-      NOTREACHED();
-      return false;
-  }
-}
-
-bool EndsWith(StringPiece str,
-              StringPiece search_for,
-              CompareCase case_sensitivity) {
-  return EndsWithT<std::string>(str, search_for, case_sensitivity);
-}
-
-bool EndsWith(StringPiece16 str,
-              StringPiece16 search_for,
-              CompareCase case_sensitivity) {
-  return EndsWithT<string16>(str, search_for, case_sensitivity);
-}
-
-char HexDigitToInt(wchar_t c) {
-  DCHECK(IsHexDigit(c));
-  if (c >= '0' && c <= '9')
-    return static_cast<char>(c - '0');
-  if (c >= 'A' && c <= 'F')
-    return static_cast<char>(c - 'A' + 10);
-  if (c >= 'a' && c <= 'f')
-    return static_cast<char>(c - 'a' + 10);
-  return 0;
-}
-
-bool IsUnicodeWhitespace(wchar_t c) {
-  // kWhitespaceWide is a NULL-terminated string
-  for (const wchar_t* cur = kWhitespaceWide; *cur; ++cur) {
-    if (*cur == c)
-      return true;
-  }
-  return false;
-}
-
-static const char* const kByteStringsUnlocalized[] = {
-  " B",
-  " kB",
-  " MB",
-  " GB",
-  " TB",
-  " PB"
-};
-
-string16 FormatBytesUnlocalized(int64_t bytes) {
-  double unit_amount = static_cast<double>(bytes);
-  size_t dimension = 0;
-  const int kKilo = 1024;
-  while (unit_amount >= kKilo &&
-         dimension < arraysize(kByteStringsUnlocalized) - 1) {
-    unit_amount /= kKilo;
-    dimension++;
-  }
-
-  char buf[64];
-  if (bytes != 0 && dimension > 0 && unit_amount < 100) {
-    base::snprintf(buf, arraysize(buf), "%.1lf%s", unit_amount,
-                   kByteStringsUnlocalized[dimension]);
-  } else {
-    base::snprintf(buf, arraysize(buf), "%.0lf%s", unit_amount,
-                   kByteStringsUnlocalized[dimension]);
-  }
-
-  return ASCIIToUTF16(buf);
-}
-
-// Runs in O(n) time in the length of |str|.
-template<class StringType>
-void DoReplaceSubstringsAfterOffset(StringType* str,
-                                    size_t offset,
-                                    BasicStringPiece<StringType> find_this,
-                                    BasicStringPiece<StringType> replace_with,
-                                    bool replace_all) {
-  DCHECK(!find_this.empty());
-
-  // If the find string doesn't appear, there's nothing to do.
-  offset = str->find(find_this.data(), offset, find_this.size());
-  if (offset == StringType::npos)
-    return;
-
-  // If we're only replacing one instance, there's no need to do anything
-  // complicated.
-  size_t find_length = find_this.length();
-  if (!replace_all) {
-    str->replace(offset, find_length, replace_with.data(), replace_with.size());
-    return;
-  }
-
-  // If the find and replace strings are the same length, we can simply use
-  // replace() on each instance, and finish the entire operation in O(n) time.
-  size_t replace_length = replace_with.length();
-  if (find_length == replace_length) {
-    do {
-      str->replace(offset, find_length,
-                   replace_with.data(), replace_with.size());
-      offset = str->find(find_this.data(), offset + replace_length,
-                         find_this.size());
-    } while (offset != StringType::npos);
-    return;
-  }
-
-  // Since the find and replace strings aren't the same length, a loop like the
-  // one above would be O(n^2) in the worst case, as replace() will shift the
-  // entire remaining string each time.  We need to be more clever to keep
-  // things O(n).
-  //
-  // If we're shortening the string, we can alternate replacements with shifting
-  // forward the intervening characters using memmove().
-  size_t str_length = str->length();
-  if (find_length > replace_length) {
-    size_t write_offset = offset;
-    do {
-      if (replace_length) {
-        str->replace(write_offset, replace_length,
-                     replace_with.data(), replace_with.size());
-        write_offset += replace_length;
-      }
-      size_t read_offset = offset + find_length;
-      offset = std::min(
-          str->find(find_this.data(), read_offset, find_this.size()),
-          str_length);
-      size_t length = offset - read_offset;
-      if (length) {
-        memmove(&(*str)[write_offset], &(*str)[read_offset],
-                length * sizeof(typename StringType::value_type));
-        write_offset += length;
-      }
-    } while (offset < str_length);
-    str->resize(write_offset);
-    return;
-  }
-
-  // We're lengthening the string.  We can use alternating replacements and
-  // memmove() calls like above, but we need to precalculate the final string
-  // length and then expand from back-to-front to avoid overwriting the string
-  // as we're reading it, needing to shift, or having to copy to a second string
-  // temporarily.
-  size_t first_match = offset;
-
-  // First, calculate the final length and resize the string.
-  size_t final_length = str_length;
-  size_t expansion = replace_length - find_length;
-  size_t current_match;
-  do {
-    final_length += expansion;
-    // Minor optimization: save this offset into |current_match|, so that on
-    // exit from the loop, |current_match| will point at the last instance of
-    // the find string, and we won't need to find() it again immediately.
-    current_match = offset;
-    offset = str->find(find_this.data(), offset + find_length,
-                       find_this.size());
-  } while (offset != StringType::npos);
-  str->resize(final_length);
-
-  // Now do the replacement loop, working backwards through the string.
-  for (size_t prev_match = str_length, write_offset = final_length; ;
-       current_match = str->rfind(find_this.data(), current_match - 1,
-                                  find_this.size())) {
-    size_t read_offset = current_match + find_length;
-    size_t length = prev_match - read_offset;
-    if (length) {
-      write_offset -= length;
-      memmove(&(*str)[write_offset], &(*str)[read_offset],
-              length * sizeof(typename StringType::value_type));
-    }
-    write_offset -= replace_length;
-    str->replace(write_offset, replace_length,
-                 replace_with.data(), replace_with.size());
-    if (current_match == first_match)
-      return;
-    prev_match = current_match;
-  }
-}
-
-void ReplaceFirstSubstringAfterOffset(string16* str,
-                                      size_t start_offset,
-                                      StringPiece16 find_this,
-                                      StringPiece16 replace_with) {
-  DoReplaceSubstringsAfterOffset<string16>(
-      str, start_offset, find_this, replace_with, false);  // Replace first.
-}
-
-void ReplaceFirstSubstringAfterOffset(std::string* str,
-                                      size_t start_offset,
-                                      StringPiece find_this,
-                                      StringPiece replace_with) {
-  DoReplaceSubstringsAfterOffset<std::string>(
-      str, start_offset, find_this, replace_with, false);  // Replace first.
-}
-
-void ReplaceSubstringsAfterOffset(string16* str,
-                                  size_t start_offset,
-                                  StringPiece16 find_this,
-                                  StringPiece16 replace_with) {
-  DoReplaceSubstringsAfterOffset<string16>(
-      str, start_offset, find_this, replace_with, true);  // Replace all.
-}
-
-void ReplaceSubstringsAfterOffset(std::string* str,
-                                  size_t start_offset,
-                                  StringPiece find_this,
-                                  StringPiece replace_with) {
-  DoReplaceSubstringsAfterOffset<std::string>(
-      str, start_offset, find_this, replace_with, true);  // Replace all.
-}
-
-template <class string_type>
-inline typename string_type::value_type* WriteIntoT(string_type* str,
-                                                    size_t length_with_null) {
-  DCHECK_GT(length_with_null, 1u);
-  str->reserve(length_with_null);
-  str->resize(length_with_null - 1);
-  return &((*str)[0]);
-}
-
-char* WriteInto(std::string* str, size_t length_with_null) {
-  return WriteIntoT(str, length_with_null);
-}
-
-char16* WriteInto(string16* str, size_t length_with_null) {
-  return WriteIntoT(str, length_with_null);
-}
-
-template<typename STR>
-static STR JoinStringT(const std::vector<STR>& parts,
-                       BasicStringPiece<STR> sep) {
-  if (parts.empty())
-    return STR();
-
-  STR result(parts[0]);
-  auto iter = parts.begin();
-  ++iter;
-
-  for (; iter != parts.end(); ++iter) {
-    sep.AppendToString(&result);
-    result += *iter;
-  }
-
-  return result;
-}
-
-std::string JoinString(const std::vector<std::string>& parts,
-                       StringPiece separator) {
-  return JoinStringT(parts, separator);
-}
-
-string16 JoinString(const std::vector<string16>& parts,
-                    StringPiece16 separator) {
-  return JoinStringT(parts, separator);
-}
-
-template<class FormatStringType, class OutStringType>
-OutStringType DoReplaceStringPlaceholders(
-    const FormatStringType& format_string,
-    const std::vector<OutStringType>& subst,
-    std::vector<size_t>* offsets) {
-  size_t substitutions = subst.size();
-
-  size_t sub_length = 0;
-  for (const auto& cur : subst)
-    sub_length += cur.length();
-
-  OutStringType formatted;
-  formatted.reserve(format_string.length() + sub_length);
-
-  std::vector<ReplacementOffset> r_offsets;
-  for (auto i = format_string.begin(); i != format_string.end(); ++i) {
-    if ('$' == *i) {
-      if (i + 1 != format_string.end()) {
-        ++i;
-        DCHECK('$' == *i || '1' <= *i) << "Invalid placeholder: " << *i;
-        if ('$' == *i) {
-          while (i != format_string.end() && '$' == *i) {
-            formatted.push_back('$');
-            ++i;
-          }
-          --i;
-        } else {
-          uintptr_t index = 0;
-          while (i != format_string.end() && '0' <= *i && *i <= '9') {
-            index *= 10;
-            index += *i - '0';
-            ++i;
-          }
-          --i;
-          index -= 1;
-          if (offsets) {
-            ReplacementOffset r_offset(index,
-                static_cast<int>(formatted.size()));
-            r_offsets.insert(std::lower_bound(r_offsets.begin(),
-                                              r_offsets.end(),
-                                              r_offset,
-                                              &CompareParameter),
-                             r_offset);
-          }
-          if (index < substitutions)
-            formatted.append(subst.at(index));
-        }
-      }
-    } else {
-      formatted.push_back(*i);
-    }
-  }
-  if (offsets) {
-    for (const auto& cur : r_offsets)
-      offsets->push_back(cur.offset);
-  }
-  return formatted;
-}
-
-string16 ReplaceStringPlaceholders(const string16& format_string,
-                                   const std::vector<string16>& subst,
-                                   std::vector<size_t>* offsets) {
-  return DoReplaceStringPlaceholders(format_string, subst, offsets);
-}
-
-std::string ReplaceStringPlaceholders(const StringPiece& format_string,
-                                      const std::vector<std::string>& subst,
-                                      std::vector<size_t>* offsets) {
-  return DoReplaceStringPlaceholders(format_string, subst, offsets);
-}
-
-string16 ReplaceStringPlaceholders(const string16& format_string,
-                                   const string16& a,
-                                   size_t* offset) {
-  std::vector<size_t> offsets;
-  std::vector<string16> subst;
-  subst.push_back(a);
-  string16 result = ReplaceStringPlaceholders(format_string, subst, &offsets);
-
-  DCHECK_EQ(1U, offsets.size());
-  if (offset)
-    *offset = offsets[0];
-  return result;
-}
-
-// The following code is compatible with the OpenBSD lcpy interface.  See:
-//   http://www.gratisoft.us/todd/papers/strlcpy.html
-//   ftp://ftp.openbsd.org/pub/OpenBSD/src/lib/libc/string/{wcs,str}lcpy.c
-
-namespace {
-
-template <typename CHAR>
-size_t lcpyT(CHAR* dst, const CHAR* src, size_t dst_size) {
-  for (size_t i = 0; i < dst_size; ++i) {
-    if ((dst[i] = src[i]) == 0)  // We hit and copied the terminating NULL.
-      return i;
-  }
-
-  // We were left off at dst_size.  We over copied 1 byte.  Null terminate.
-  if (dst_size != 0)
-    dst[dst_size - 1] = 0;
-
-  // Count the rest of the |src|, and return it's length in characters.
-  while (src[dst_size]) ++dst_size;
-  return dst_size;
-}
-
-}  // namespace
-
-size_t strlcpy(char* dst, const char* src, size_t dst_size) {
-  return lcpyT<char>(dst, src, dst_size);
-}
-size_t wcslcpy(wchar_t* dst, const wchar_t* src, size_t dst_size) {
-  return lcpyT<wchar_t>(dst, src, dst_size);
-}
-
-}  // namespace base
diff --git a/security/sandbox/chromium/base/strings/string_util.h b/security/sandbox/chromium/base/strings/string_util.h
deleted file mode 100644
index e369f294d..000000000
--- a/security/sandbox/chromium/base/strings/string_util.h
+++ /dev/null
@@ -1,461 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-//
-// This file defines utility functions for working with strings.
-
-#ifndef BASE_STRINGS_STRING_UTIL_H_
-#define BASE_STRINGS_STRING_UTIL_H_
-
-#include <ctype.h>
-#include <stdarg.h>   // va_list
-#include <stddef.h>
-#include <stdint.h>
-
-#include <string>
-#include <vector>
-
-#include "base/base_export.h"
-#include "base/compiler_specific.h"
-#include "base/strings/string16.h"
-#include "base/strings/string_piece.h"  // For implicit conversions.
-#include "build/build_config.h"
-
-namespace base {
-
-// C standard-library functions that aren't cross-platform are provided as
-// "base::...", and their prototypes are listed below. These functions are
-// then implemented as inline calls to the platform-specific equivalents in the
-// platform-specific headers.
-
-// Wrapper for vsnprintf that always null-terminates and always returns the
-// number of characters that would be in an untruncated formatted
-// string, even when truncation occurs.
-int vsnprintf(char* buffer, size_t size, const char* format, va_list arguments)
-    PRINTF_FORMAT(3, 0);
-
-// Some of these implementations need to be inlined.
-
-// We separate the declaration from the implementation of this inline
-// function just so the PRINTF_FORMAT works.
-inline int snprintf(char* buffer,
-                    size_t size,
-                    _Printf_format_string_ const char* format,
-                    ...) PRINTF_FORMAT(3, 4);
-inline int snprintf(char* buffer,
-                    size_t size,
-                    _Printf_format_string_ const char* format,
-                    ...) {
-  va_list arguments;
-  va_start(arguments, format);
-  int result = vsnprintf(buffer, size, format, arguments);
-  va_end(arguments);
-  return result;
-}
-
-// BSD-style safe and consistent string copy functions.
-// Copies |src| to |dst|, where |dst_size| is the total allocated size of |dst|.
-// Copies at most |dst_size|-1 characters, and always NULL terminates |dst|, as
-// long as |dst_size| is not 0.  Returns the length of |src| in characters.
-// If the return value is >= dst_size, then the output was truncated.
-// NOTE: All sizes are in number of characters, NOT in bytes.
-BASE_EXPORT size_t strlcpy(char* dst, const char* src, size_t dst_size);
-BASE_EXPORT size_t wcslcpy(wchar_t* dst, const wchar_t* src, size_t dst_size);
-
-// Scan a wprintf format string to determine whether it's portable across a
-// variety of systems.  This function only checks that the conversion
-// specifiers used by the format string are supported and have the same meaning
-// on a variety of systems.  It doesn't check for other errors that might occur
-// within a format string.
-//
-// Nonportable conversion specifiers for wprintf are:
-//  - 's' and 'c' without an 'l' length modifier.  %s and %c operate on char
-//     data on all systems except Windows, which treat them as wchar_t data.
-//     Use %ls and %lc for wchar_t data instead.
-//  - 'S' and 'C', which operate on wchar_t data on all systems except Windows,
-//     which treat them as char data.  Use %ls and %lc for wchar_t data
-//     instead.
-//  - 'F', which is not identified by Windows wprintf documentation.
-//  - 'D', 'O', and 'U', which are deprecated and not available on all systems.
-//     Use %ld, %lo, and %lu instead.
-//
-// Note that there is no portable conversion specifier for char data when
-// working with wprintf.
-//
-// This function is intended to be called from base::vswprintf.
-BASE_EXPORT bool IsWprintfFormatPortable(const wchar_t* format);
-
-// ASCII-specific tolower.  The standard library's tolower is locale sensitive,
-// so we don't want to use it here.
-inline char ToLowerASCII(char c) {
-  return (c >= 'A' && c <= 'Z') ? (c + ('a' - 'A')) : c;
-}
-inline char16 ToLowerASCII(char16 c) {
-  return (c >= 'A' && c <= 'Z') ? (c + ('a' - 'A')) : c;
-}
-
-// ASCII-specific toupper.  The standard library's toupper is locale sensitive,
-// so we don't want to use it here.
-inline char ToUpperASCII(char c) {
-  return (c >= 'a' && c <= 'z') ? (c + ('A' - 'a')) : c;
-}
-inline char16 ToUpperASCII(char16 c) {
-  return (c >= 'a' && c <= 'z') ? (c + ('A' - 'a')) : c;
-}
-
-// Converts the given string to it's ASCII-lowercase equivalent.
-BASE_EXPORT std::string ToLowerASCII(StringPiece str);
-BASE_EXPORT string16 ToLowerASCII(StringPiece16 str);
-
-// Converts the given string to it's ASCII-uppercase equivalent.
-BASE_EXPORT std::string ToUpperASCII(StringPiece str);
-BASE_EXPORT string16 ToUpperASCII(StringPiece16 str);
-
-// Functor for case-insensitive ASCII comparisons for STL algorithms like
-// std::search.
-//
-// Note that a full Unicode version of this functor is not possible to write
-// because case mappings might change the number of characters, depend on
-// context (combining accents), and require handling UTF-16. If you need
-// proper Unicode support, use base::i18n::ToLower/FoldCase and then just
-// use a normal operator== on the result.
-template<typename Char> struct CaseInsensitiveCompareASCII {
- public:
-  bool operator()(Char x, Char y) const {
-    return ToLowerASCII(x) == ToLowerASCII(y);
-  }
-};
-
-// Like strcasecmp for case-insensitive ASCII characters only. Returns:
-//   -1  (a < b)
-//    0  (a == b)
-//    1  (a > b)
-// (unlike strcasecmp which can return values greater or less than 1/-1). For
-// full Unicode support, use base::i18n::ToLower or base::i18h::FoldCase
-// and then just call the normal string operators on the result.
-BASE_EXPORT int CompareCaseInsensitiveASCII(StringPiece a, StringPiece b);
-BASE_EXPORT int CompareCaseInsensitiveASCII(StringPiece16 a, StringPiece16 b);
-
-// Equality for ASCII case-insensitive comparisons. For full Unicode support,
-// use base::i18n::ToLower or base::i18h::FoldCase and then compare with either
-// == or !=.
-BASE_EXPORT bool EqualsCaseInsensitiveASCII(StringPiece a, StringPiece b);
-BASE_EXPORT bool EqualsCaseInsensitiveASCII(StringPiece16 a, StringPiece16 b);
-
-// These threadsafe functions return references to globally unique empty
-// strings.
-//
-// It is likely faster to construct a new empty string object (just a few
-// instructions to set the length to 0) than to get the empty string singleton
-// returned by these functions (which requires threadsafe singleton access).
-//
-// Therefore, DO NOT USE THESE AS A GENERAL-PURPOSE SUBSTITUTE FOR DEFAULT
-// CONSTRUCTORS. There is only one case where you should use these: functions
-// which need to return a string by reference (e.g. as a class member
-// accessor), and don't have an empty string to use (e.g. in an error case).
-// These should not be used as initializers, function arguments, or return
-// values for functions which return by value or outparam.
-BASE_EXPORT const std::string& EmptyString();
-BASE_EXPORT const string16& EmptyString16();
-
-// Contains the set of characters representing whitespace in the corresponding
-// encoding. Null-terminated. The ASCII versions are the whitespaces as defined
-// by HTML5, and don't include control characters.
-BASE_EXPORT extern const wchar_t kWhitespaceWide[];  // Includes Unicode.
-BASE_EXPORT extern const char16 kWhitespaceUTF16[];  // Includes Unicode.
-BASE_EXPORT extern const char kWhitespaceASCII[];
-BASE_EXPORT extern const char16 kWhitespaceASCIIAs16[];  // No unicode.
-
-// Null-terminated string representing the UTF-8 byte order mark.
-BASE_EXPORT extern const char kUtf8ByteOrderMark[];
-
-// Removes characters in |remove_chars| from anywhere in |input|.  Returns true
-// if any characters were removed.  |remove_chars| must be null-terminated.
-// NOTE: Safe to use the same variable for both |input| and |output|.
-BASE_EXPORT bool RemoveChars(const string16& input,
-                             const StringPiece16& remove_chars,
-                             string16* output);
-BASE_EXPORT bool RemoveChars(const std::string& input,
-                             const StringPiece& remove_chars,
-                             std::string* output);
-
-// Replaces characters in |replace_chars| from anywhere in |input| with
-// |replace_with|.  Each character in |replace_chars| will be replaced with
-// the |replace_with| string.  Returns true if any characters were replaced.
-// |replace_chars| must be null-terminated.
-// NOTE: Safe to use the same variable for both |input| and |output|.
-BASE_EXPORT bool ReplaceChars(const string16& input,
-                              const StringPiece16& replace_chars,
-                              const string16& replace_with,
-                              string16* output);
-BASE_EXPORT bool ReplaceChars(const std::string& input,
-                              const StringPiece& replace_chars,
-                              const std::string& replace_with,
-                              std::string* output);
-
-enum TrimPositions {
-  TRIM_NONE     = 0,
-  TRIM_LEADING  = 1 << 0,
-  TRIM_TRAILING = 1 << 1,
-  TRIM_ALL      = TRIM_LEADING | TRIM_TRAILING,
-};
-
-// Removes characters in |trim_chars| from the beginning and end of |input|.
-// The 8-bit version only works on 8-bit characters, not UTF-8.
-//
-// It is safe to use the same variable for both |input| and |output| (this is
-// the normal usage to trim in-place).
-BASE_EXPORT bool TrimString(const string16& input,
-                            StringPiece16 trim_chars,
-                            string16* output);
-BASE_EXPORT bool TrimString(const std::string& input,
-                            StringPiece trim_chars,
-                            std::string* output);
-
-// StringPiece versions of the above. The returned pieces refer to the original
-// buffer.
-BASE_EXPORT StringPiece16 TrimString(StringPiece16 input,
-                                     const StringPiece16& trim_chars,
-                                     TrimPositions positions);
-BASE_EXPORT StringPiece TrimString(StringPiece input,
-                                   const StringPiece& trim_chars,
-                                   TrimPositions positions);
-
-// Truncates a string to the nearest UTF-8 character that will leave
-// the string less than or equal to the specified byte size.
-BASE_EXPORT void TruncateUTF8ToByteSize(const std::string& input,
-                                        const size_t byte_size,
-                                        std::string* output);
-
-// Trims any whitespace from either end of the input string.
-//
-// The StringPiece versions return a substring referencing the input buffer.
-// The ASCII versions look only for ASCII whitespace.
-//
-// The std::string versions return where whitespace was found.
-// NOTE: Safe to use the same variable for both input and output.
-BASE_EXPORT TrimPositions TrimWhitespace(const string16& input,
-                                         TrimPositions positions,
-                                         string16* output);
-BASE_EXPORT StringPiece16 TrimWhitespace(StringPiece16 input,
-                                         TrimPositions positions);
-BASE_EXPORT TrimPositions TrimWhitespaceASCII(const std::string& input,
-                                              TrimPositions positions,
-                                              std::string* output);
-BASE_EXPORT StringPiece TrimWhitespaceASCII(StringPiece input,
-                                            TrimPositions positions);
-
-// Searches  for CR or LF characters.  Removes all contiguous whitespace
-// strings that contain them.  This is useful when trying to deal with text
-// copied from terminals.
-// Returns |text|, with the following three transformations:
-// (1) Leading and trailing whitespace is trimmed.
-// (2) If |trim_sequences_with_line_breaks| is true, any other whitespace
-//     sequences containing a CR or LF are trimmed.
-// (3) All other whitespace sequences are converted to single spaces.
-BASE_EXPORT string16 CollapseWhitespace(
-    const string16& text,
-    bool trim_sequences_with_line_breaks);
-BASE_EXPORT std::string CollapseWhitespaceASCII(
-    const std::string& text,
-    bool trim_sequences_with_line_breaks);
-
-// Returns true if |input| is empty or contains only characters found in
-// |characters|.
-BASE_EXPORT bool ContainsOnlyChars(const StringPiece& input,
-                                   const StringPiece& characters);
-BASE_EXPORT bool ContainsOnlyChars(const StringPiece16& input,
-                                   const StringPiece16& characters);
-
-// Returns true if the specified string matches the criteria. How can a wide
-// string be 8-bit or UTF8? It contains only characters that are < 256 (in the
-// first case) or characters that use only 8-bits and whose 8-bit
-// representation looks like a UTF-8 string (the second case).
-//
-// Note that IsStringUTF8 checks not only if the input is structurally
-// valid but also if it doesn't contain any non-character codepoint
-// (e.g. U+FFFE). It's done on purpose because all the existing callers want
-// to have the maximum 'discriminating' power from other encodings. If
-// there's a use case for just checking the structural validity, we have to
-// add a new function for that.
-//
-// IsStringASCII assumes the input is likely all ASCII, and does not leave early
-// if it is not the case.
-BASE_EXPORT bool IsStringUTF8(const StringPiece& str);
-BASE_EXPORT bool IsStringASCII(const StringPiece& str);
-BASE_EXPORT bool IsStringASCII(const StringPiece16& str);
-// A convenience adaptor for WebStrings, as they don't convert into
-// StringPieces directly.
-BASE_EXPORT bool IsStringASCII(const string16& str);
-#if defined(WCHAR_T_IS_UTF32)
-BASE_EXPORT bool IsStringASCII(const std::wstring& str);
-#endif
-
-// Compare the lower-case form of the given string against the given
-// previously-lower-cased ASCII string (typically a constant).
-BASE_EXPORT bool LowerCaseEqualsASCII(StringPiece str,
-                                      StringPiece lowecase_ascii);
-BASE_EXPORT bool LowerCaseEqualsASCII(StringPiece16 str,
-                                      StringPiece lowecase_ascii);
-
-// Performs a case-sensitive string compare of the given 16-bit string against
-// the given 8-bit ASCII string (typically a constant). The behavior is
-// undefined if the |ascii| string is not ASCII.
-BASE_EXPORT bool EqualsASCII(StringPiece16 str, StringPiece ascii);
-
-// Indicates case sensitivity of comparisons. Only ASCII case insensitivity
-// is supported. Full Unicode case-insensitive conversions would need to go in
-// base/i18n so it can use ICU.
-//
-// If you need to do Unicode-aware case-insensitive StartsWith/EndsWith, it's
-// best to call base::i18n::ToLower() or base::i18n::FoldCase() (see
-// base/i18n/case_conversion.h for usage advice) on the arguments, and then use
-// the results to a case-sensitive comparison.
-enum class CompareCase {
-  SENSITIVE,
-  INSENSITIVE_ASCII,
-};
-
-BASE_EXPORT bool StartsWith(StringPiece str,
-                            StringPiece search_for,
-                            CompareCase case_sensitivity);
-BASE_EXPORT bool StartsWith(StringPiece16 str,
-                            StringPiece16 search_for,
-                            CompareCase case_sensitivity);
-BASE_EXPORT bool EndsWith(StringPiece str,
-                          StringPiece search_for,
-                          CompareCase case_sensitivity);
-BASE_EXPORT bool EndsWith(StringPiece16 str,
-                          StringPiece16 search_for,
-                          CompareCase case_sensitivity);
-
-// Determines the type of ASCII character, independent of locale (the C
-// library versions will change based on locale).
-template <typename Char>
-inline bool IsAsciiWhitespace(Char c) {
-  return c == ' ' || c == '\r' || c == '\n' || c == '\t';
-}
-template <typename Char>
-inline bool IsAsciiAlpha(Char c) {
-  return ((c >= 'A') && (c <= 'Z')) || ((c >= 'a') && (c <= 'z'));
-}
-template <typename Char>
-inline bool IsAsciiDigit(Char c) {
-  return c >= '0' && c <= '9';
-}
-
-template <typename Char>
-inline bool IsHexDigit(Char c) {
-  return (c >= '0' && c <= '9') ||
-         (c >= 'A' && c <= 'F') ||
-         (c >= 'a' && c <= 'f');
-}
-
-// Returns the integer corresponding to the given hex character. For example:
-//    '4' -> 4
-//    'a' -> 10
-//    'B' -> 11
-// Assumes the input is a valid hex character. DCHECKs in debug builds if not.
-BASE_EXPORT char HexDigitToInt(wchar_t c);
-
-// Returns true if it's a Unicode whitespace character.
-BASE_EXPORT bool IsUnicodeWhitespace(wchar_t c);
-
-// Return a byte string in human-readable format with a unit suffix. Not
-// appropriate for use in any UI; use of FormatBytes and friends in ui/base is
-// highly recommended instead. TODO(avi): Figure out how to get callers to use
-// FormatBytes instead; remove this.
-BASE_EXPORT string16 FormatBytesUnlocalized(int64_t bytes);
-
-// Starting at |start_offset| (usually 0), replace the first instance of
-// |find_this| with |replace_with|.
-BASE_EXPORT void ReplaceFirstSubstringAfterOffset(
-    base::string16* str,
-    size_t start_offset,
-    StringPiece16 find_this,
-    StringPiece16 replace_with);
-BASE_EXPORT void ReplaceFirstSubstringAfterOffset(
-    std::string* str,
-    size_t start_offset,
-    StringPiece find_this,
-    StringPiece replace_with);
-
-// Starting at |start_offset| (usually 0), look through |str| and replace all
-// instances of |find_this| with |replace_with|.
-//
-// This does entire substrings; use std::replace in <algorithm> for single
-// characters, for example:
-//   std::replace(str.begin(), str.end(), 'a', 'b');
-BASE_EXPORT void ReplaceSubstringsAfterOffset(
-    string16* str,
-    size_t start_offset,
-    StringPiece16 find_this,
-    StringPiece16 replace_with);
-BASE_EXPORT void ReplaceSubstringsAfterOffset(
-    std::string* str,
-    size_t start_offset,
-    StringPiece find_this,
-    StringPiece replace_with);
-
-// Reserves enough memory in |str| to accommodate |length_with_null| characters,
-// sets the size of |str| to |length_with_null - 1| characters, and returns a
-// pointer to the underlying contiguous array of characters.  This is typically
-// used when calling a function that writes results into a character array, but
-// the caller wants the data to be managed by a string-like object.  It is
-// convenient in that is can be used inline in the call, and fast in that it
-// avoids copying the results of the call from a char* into a string.
-//
-// |length_with_null| must be at least 2, since otherwise the underlying string
-// would have size 0, and trying to access &((*str)[0]) in that case can result
-// in a number of problems.
-//
-// Internally, this takes linear time because the resize() call 0-fills the
-// underlying array for potentially all
-// (|length_with_null - 1| * sizeof(string_type::value_type)) bytes.  Ideally we
-// could avoid this aspect of the resize() call, as we expect the caller to
-// immediately write over this memory, but there is no other way to set the size
-// of the string, and not doing that will mean people who access |str| rather
-// than str.c_str() will get back a string of whatever size |str| had on entry
-// to this function (probably 0).
-BASE_EXPORT char* WriteInto(std::string* str, size_t length_with_null);
-BASE_EXPORT char16* WriteInto(string16* str, size_t length_with_null);
-#ifndef OS_WIN
-BASE_EXPORT wchar_t* WriteInto(std::wstring* str, size_t length_with_null);
-#endif
-
-// Does the opposite of SplitString().
-BASE_EXPORT std::string JoinString(const std::vector<std::string>& parts,
-                                   StringPiece separator);
-BASE_EXPORT string16 JoinString(const std::vector<string16>& parts,
-                                StringPiece16 separator);
-
-// Replace $1-$2-$3..$9 in the format string with |a|-|b|-|c|..|i| respectively.
-// Additionally, any number of consecutive '$' characters is replaced by that
-// number less one. Eg $$->$, $$$->$$, etc. The offsets parameter here can be
-// NULL. This only allows you to use up to nine replacements.
-BASE_EXPORT string16 ReplaceStringPlaceholders(
-    const string16& format_string,
-    const std::vector<string16>& subst,
-    std::vector<size_t>* offsets);
-
-BASE_EXPORT std::string ReplaceStringPlaceholders(
-    const StringPiece& format_string,
-    const std::vector<std::string>& subst,
-    std::vector<size_t>* offsets);
-
-// Single-string shortcut for ReplaceStringHolders. |offset| may be NULL.
-BASE_EXPORT string16 ReplaceStringPlaceholders(const string16& format_string,
-                                               const string16& a,
-                                               size_t* offset);
-
-}  // namespace base
-
-#if defined(OS_WIN)
-#include "base/strings/string_util_win.h"
-#elif defined(OS_POSIX)
-#include "base/strings/string_util_posix.h"
-#else
-#error Define string operations appropriately for your platform
-#endif
-
-#endif  // BASE_STRINGS_STRING_UTIL_H_
diff --git a/security/sandbox/chromium/base/strings/string_util_constants.cc b/security/sandbox/chromium/base/strings/string_util_constants.cc
deleted file mode 100644
index aba1b12b8..000000000
--- a/security/sandbox/chromium/base/strings/string_util_constants.cc
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/strings/string_util.h"
-
-namespace base {
-
-#define WHITESPACE_UNICODE \
-  0x0009, /* CHARACTER TABULATION */      \
-  0x000A, /* LINE FEED (LF) */            \
-  0x000B, /* LINE TABULATION */           \
-  0x000C, /* FORM FEED (FF) */            \
-  0x000D, /* CARRIAGE RETURN (CR) */      \
-  0x0020, /* SPACE */                     \
-  0x0085, /* NEXT LINE (NEL) */           \
-  0x00A0, /* NO-BREAK SPACE */            \
-  0x1680, /* OGHAM SPACE MARK */          \
-  0x2000, /* EN QUAD */                   \
-  0x2001, /* EM QUAD */                   \
-  0x2002, /* EN SPACE */                  \
-  0x2003, /* EM SPACE */                  \
-  0x2004, /* THREE-PER-EM SPACE */        \
-  0x2005, /* FOUR-PER-EM SPACE */         \
-  0x2006, /* SIX-PER-EM SPACE */          \
-  0x2007, /* FIGURE SPACE */              \
-  0x2008, /* PUNCTUATION SPACE */         \
-  0x2009, /* THIN SPACE */                \
-  0x200A, /* HAIR SPACE */                \
-  0x2028, /* LINE SEPARATOR */            \
-  0x2029, /* PARAGRAPH SEPARATOR */       \
-  0x202F, /* NARROW NO-BREAK SPACE */     \
-  0x205F, /* MEDIUM MATHEMATICAL SPACE */ \
-  0x3000, /* IDEOGRAPHIC SPACE */         \
-  0
-
-const wchar_t kWhitespaceWide[] = {
-  WHITESPACE_UNICODE
-};
-
-const char16 kWhitespaceUTF16[] = {
-  WHITESPACE_UNICODE
-};
-
-const char kWhitespaceASCII[] = {
-  0x09,    // CHARACTER TABULATION
-  0x0A,    // LINE FEED (LF)
-  0x0B,    // LINE TABULATION
-  0x0C,    // FORM FEED (FF)
-  0x0D,    // CARRIAGE RETURN (CR)
-  0x20,    // SPACE
-  0
-};
-
-const char16 kWhitespaceASCIIAs16[] = {
-  0x09,    // CHARACTER TABULATION
-  0x0A,    // LINE FEED (LF)
-  0x0B,    // LINE TABULATION
-  0x0C,    // FORM FEED (FF)
-  0x0D,    // CARRIAGE RETURN (CR)
-  0x20,    // SPACE
-  0
-};
-
-const char kUtf8ByteOrderMark[] = "\xEF\xBB\xBF";
-
-}  // namespace base
diff --git a/security/sandbox/chromium/base/strings/string_util_posix.h b/security/sandbox/chromium/base/strings/string_util_posix.h
deleted file mode 100644
index 8299118e1..000000000
--- a/security/sandbox/chromium/base/strings/string_util_posix.h
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BASE_STRINGS_STRING_UTIL_POSIX_H_
-#define BASE_STRINGS_STRING_UTIL_POSIX_H_
-
-#include <stdarg.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <string.h>
-#include <wchar.h>
-
-#include "base/logging.h"
-
-namespace base {
-
-// Chromium code style is to not use malloc'd strings; this is only for use
-// for interaction with APIs that require it.
-inline char* strdup(const char* str) {
-  return ::strdup(str);
-}
-
-inline int vsnprintf(char* buffer, size_t size,
-                     const char* format, va_list arguments) {
-  return ::vsnprintf(buffer, size, format, arguments);
-}
-
-inline int vswprintf(wchar_t* buffer, size_t size,
-                     const wchar_t* format, va_list arguments) {
-  DCHECK(IsWprintfFormatPortable(format));
-  return ::vswprintf(buffer, size, format, arguments);
-}
-
-}  // namespace base
-
-#endif  // BASE_STRINGS_STRING_UTIL_POSIX_H_
diff --git a/security/sandbox/chromium/base/strings/string_util_win.h b/security/sandbox/chromium/base/strings/string_util_win.h
deleted file mode 100644
index 7f260bfc8..000000000
--- a/security/sandbox/chromium/base/strings/string_util_win.h
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BASE_STRINGS_STRING_UTIL_WIN_H_
-#define BASE_STRINGS_STRING_UTIL_WIN_H_
-
-#include <stdarg.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <string.h>
-#include <wchar.h>
-
-#include "base/logging.h"
-
-namespace base {
-
-// Chromium code style is to not use malloc'd strings; this is only for use
-// for interaction with APIs that require it.
-inline char* strdup(const char* str) {
-  return _strdup(str);
-}
-
-inline int vsnprintf(char* buffer, size_t size,
-                     const char* format, va_list arguments) {
-  int length = vsnprintf_s(buffer, size, size - 1, format, arguments);
-  if (length < 0)
-    return _vscprintf(format, arguments);
-  return length;
-}
-
-inline int vswprintf(wchar_t* buffer, size_t size,
-                     const wchar_t* format, va_list arguments) {
-  DCHECK(IsWprintfFormatPortable(format));
-
-  int length = _vsnwprintf_s(buffer, size, size - 1, format, arguments);
-  if (length < 0)
-    return _vscwprintf(format, arguments);
-  return length;
-}
-
-}  // namespace base
-
-#endif  // BASE_STRINGS_STRING_UTIL_WIN_H_
diff --git a/security/sandbox/chromium/base/strings/stringprintf.cc b/security/sandbox/chromium/base/strings/stringprintf.cc
deleted file mode 100644
index 415845d61..000000000
--- a/security/sandbox/chromium/base/strings/stringprintf.cc
+++ /dev/null
@@ -1,189 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/strings/stringprintf.h"
-
-#include <errno.h>
-#include <stddef.h>
-
-#include <vector>
-
-#include "base/macros.h"
-#include "base/scoped_clear_errno.h"
-#include "base/strings/string_util.h"
-#include "base/strings/utf_string_conversions.h"
-#include "build/build_config.h"
-
-namespace base {
-
-namespace {
-
-// Overloaded wrappers around vsnprintf and vswprintf. The buf_size parameter
-// is the size of the buffer. These return the number of characters in the
-// formatted string excluding the NUL terminator. If the buffer is not
-// large enough to accommodate the formatted string without truncation, they
-// return the number of characters that would be in the fully-formatted string
-// (vsnprintf, and vswprintf on Windows), or -1 (vswprintf on POSIX platforms).
-inline int vsnprintfT(char* buffer,
-                      size_t buf_size,
-                      const char* format,
-                      va_list argptr) {
-  return base::vsnprintf(buffer, buf_size, format, argptr);
-}
-
-#if defined(OS_WIN)
-inline int vsnprintfT(wchar_t* buffer,
-                      size_t buf_size,
-                      const wchar_t* format,
-                      va_list argptr) {
-  return base::vswprintf(buffer, buf_size, format, argptr);
-}
-#endif
-
-// Templatized backend for StringPrintF/StringAppendF. This does not finalize
-// the va_list, the caller is expected to do that.
-template <class StringType>
-static void StringAppendVT(StringType* dst,
-                           const typename StringType::value_type* format,
-                           va_list ap) {
-  // First try with a small fixed size buffer.
-  // This buffer size should be kept in sync with StringUtilTest.GrowBoundary
-  // and StringUtilTest.StringPrintfBounds.
-  typename StringType::value_type stack_buf[1024];
-
-  va_list ap_copy;
-  va_copy(ap_copy, ap);
-
-#if !defined(OS_WIN)
-  ScopedClearErrno clear_errno;
-#endif
-  int result = vsnprintfT(stack_buf, arraysize(stack_buf), format, ap_copy);
-  va_end(ap_copy);
-
-  if (result >= 0 && result < static_cast<int>(arraysize(stack_buf))) {
-    // It fit.
-    dst->append(stack_buf, result);
-    return;
-  }
-
-  // Repeatedly increase buffer size until it fits.
-  int mem_length = arraysize(stack_buf);
-  while (true) {
-    if (result < 0) {
-#if defined(OS_WIN)
-      // On Windows, vsnprintfT always returns the number of characters in a
-      // fully-formatted string, so if we reach this point, something else is
-      // wrong and no amount of buffer-doubling is going to fix it.
-      return;
-#else
-      if (errno != 0 && errno != EOVERFLOW)
-        return;
-      // Try doubling the buffer size.
-      mem_length *= 2;
-#endif
-    } else {
-      // We need exactly "result + 1" characters.
-      mem_length = result + 1;
-    }
-
-    if (mem_length > 32 * 1024 * 1024) {
-      // That should be plenty, don't try anything larger.  This protects
-      // against huge allocations when using vsnprintfT implementations that
-      // return -1 for reasons other than overflow without setting errno.
-      DLOG(WARNING) << "Unable to printf the requested string due to size.";
-      return;
-    }
-
-    std::vector<typename StringType::value_type> mem_buf(mem_length);
-
-    // NOTE: You can only use a va_list once.  Since we're in a while loop, we
-    // need to make a new copy each time so we don't use up the original.
-    va_copy(ap_copy, ap);
-    result = vsnprintfT(&mem_buf[0], mem_length, format, ap_copy);
-    va_end(ap_copy);
-
-    if ((result >= 0) && (result < mem_length)) {
-      // It fit.
-      dst->append(&mem_buf[0], result);
-      return;
-    }
-  }
-}
-
-}  // namespace
-
-std::string StringPrintf(const char* format, ...) {
-  va_list ap;
-  va_start(ap, format);
-  std::string result;
-  StringAppendV(&result, format, ap);
-  va_end(ap);
-  return result;
-}
-
-#if defined(OS_WIN)
-std::wstring StringPrintf(const wchar_t* format, ...) {
-  va_list ap;
-  va_start(ap, format);
-  std::wstring result;
-  StringAppendV(&result, format, ap);
-  va_end(ap);
-  return result;
-}
-#endif
-
-std::string StringPrintV(const char* format, va_list ap) {
-  std::string result;
-  StringAppendV(&result, format, ap);
-  return result;
-}
-
-const std::string& SStringPrintf(std::string* dst, const char* format, ...) {
-  va_list ap;
-  va_start(ap, format);
-  dst->clear();
-  StringAppendV(dst, format, ap);
-  va_end(ap);
-  return *dst;
-}
-
-#if defined(OS_WIN)
-const std::wstring& SStringPrintf(std::wstring* dst,
-                                  const wchar_t* format, ...) {
-  va_list ap;
-  va_start(ap, format);
-  dst->clear();
-  StringAppendV(dst, format, ap);
-  va_end(ap);
-  return *dst;
-}
-#endif
-
-void StringAppendF(std::string* dst, const char* format, ...) {
-  va_list ap;
-  va_start(ap, format);
-  StringAppendV(dst, format, ap);
-  va_end(ap);
-}
-
-#if defined(OS_WIN)
-void StringAppendF(std::wstring* dst, const wchar_t* format, ...) {
-  va_list ap;
-  va_start(ap, format);
-  StringAppendV(dst, format, ap);
-  va_end(ap);
-}
-#endif
-
-void StringAppendV(std::string* dst, const char* format, va_list ap) {
-  StringAppendVT(dst, format, ap);
-}
-
-#if defined(OS_WIN)
-void StringAppendV(std::wstring* dst, const wchar_t* format, va_list ap) {
-  StringAppendVT(dst, format, ap);
-}
-#endif
-
-}  // namespace base
diff --git a/security/sandbox/chromium/base/strings/stringprintf.h b/security/sandbox/chromium/base/strings/stringprintf.h
deleted file mode 100644
index 7a75d89e1..000000000
--- a/security/sandbox/chromium/base/strings/stringprintf.h
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BASE_STRINGS_STRINGPRINTF_H_
-#define BASE_STRINGS_STRINGPRINTF_H_
-
-#include <stdarg.h>   // va_list
-
-#include <string>
-
-#include "base/base_export.h"
-#include "base/compiler_specific.h"
-#include "build/build_config.h"
-
-namespace base {
-
-// Return a C++ string given printf-like input.
-BASE_EXPORT std::string StringPrintf(_Printf_format_string_ const char* format,
-                                     ...)
-    PRINTF_FORMAT(1, 2) WARN_UNUSED_RESULT;
-#if defined(OS_WIN)
-BASE_EXPORT std::wstring StringPrintf(
-    _Printf_format_string_ const wchar_t* format,
-    ...) WPRINTF_FORMAT(1, 2) WARN_UNUSED_RESULT;
-#endif
-
-// Return a C++ string given vprintf-like input.
-BASE_EXPORT std::string StringPrintV(const char* format, va_list ap)
-    PRINTF_FORMAT(1, 0) WARN_UNUSED_RESULT;
-
-// Store result into a supplied string and return it.
-BASE_EXPORT const std::string& SStringPrintf(
-    std::string* dst,
-    _Printf_format_string_ const char* format,
-    ...) PRINTF_FORMAT(2, 3);
-#if defined(OS_WIN)
-BASE_EXPORT const std::wstring& SStringPrintf(
-    std::wstring* dst,
-    _Printf_format_string_ const wchar_t* format,
-    ...) WPRINTF_FORMAT(2, 3);
-#endif
-
-// Append result to a supplied string.
-BASE_EXPORT void StringAppendF(std::string* dst,
-                               _Printf_format_string_ const char* format,
-                               ...) PRINTF_FORMAT(2, 3);
-#if defined(OS_WIN)
-BASE_EXPORT void StringAppendF(std::wstring* dst,
-                               _Printf_format_string_ const wchar_t* format,
-                               ...) WPRINTF_FORMAT(2, 3);
-#endif
-
-// Lower-level routine that takes a va_list and appends to a specified
-// string.  All other routines are just convenience wrappers around it.
-BASE_EXPORT void StringAppendV(std::string* dst, const char* format, va_list ap)
-    PRINTF_FORMAT(2, 0);
-#if defined(OS_WIN)
-BASE_EXPORT void StringAppendV(std::wstring* dst,
-                               const wchar_t* format, va_list ap)
-    WPRINTF_FORMAT(2, 0);
-#endif
-
-}  // namespace base
-
-#endif  // BASE_STRINGS_STRINGPRINTF_H_
diff --git a/security/sandbox/chromium/base/strings/utf_string_conversion_utils.cc b/security/sandbox/chromium/base/strings/utf_string_conversion_utils.cc
deleted file mode 100644
index 3101a6028..000000000
--- a/security/sandbox/chromium/base/strings/utf_string_conversion_utils.cc
+++ /dev/null
@@ -1,148 +0,0 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/strings/utf_string_conversion_utils.h"
-
-#include "base/third_party/icu/icu_utf.h"
-
-namespace base {
-
-// ReadUnicodeCharacter --------------------------------------------------------
-
-bool ReadUnicodeCharacter(const char* src,
-                          int32_t src_len,
-                          int32_t* char_index,
-                          uint32_t* code_point_out) {
-  // U8_NEXT expects to be able to use -1 to signal an error, so we must
-  // use a signed type for code_point.  But this function returns false
-  // on error anyway, so code_point_out is unsigned.
-  int32_t code_point;
-  CBU8_NEXT(src, *char_index, src_len, code_point);
-  *code_point_out = static_cast<uint32_t>(code_point);
-
-  // The ICU macro above moves to the next char, we want to point to the last
-  // char consumed.
-  (*char_index)--;
-
-  // Validate the decoded value.
-  return IsValidCodepoint(code_point);
-}
-
-bool ReadUnicodeCharacter(const char16* src,
-                          int32_t src_len,
-                          int32_t* char_index,
-                          uint32_t* code_point) {
-  if (CBU16_IS_SURROGATE(src[*char_index])) {
-    if (!CBU16_IS_SURROGATE_LEAD(src[*char_index]) ||
-        *char_index + 1 >= src_len ||
-        !CBU16_IS_TRAIL(src[*char_index + 1])) {
-      // Invalid surrogate pair.
-      return false;
-    }
-
-    // Valid surrogate pair.
-    *code_point = CBU16_GET_SUPPLEMENTARY(src[*char_index],
-                                          src[*char_index + 1]);
-    (*char_index)++;
-  } else {
-    // Not a surrogate, just one 16-bit word.
-    *code_point = src[*char_index];
-  }
-
-  return IsValidCodepoint(*code_point);
-}
-
-#if defined(WCHAR_T_IS_UTF32)
-bool ReadUnicodeCharacter(const wchar_t* src,
-                          int32_t src_len,
-                          int32_t* char_index,
-                          uint32_t* code_point) {
-  // Conversion is easy since the source is 32-bit.
-  *code_point = src[*char_index];
-
-  // Validate the value.
-  return IsValidCodepoint(*code_point);
-}
-#endif  // defined(WCHAR_T_IS_UTF32)
-
-// WriteUnicodeCharacter -------------------------------------------------------
-
-size_t WriteUnicodeCharacter(uint32_t code_point, std::string* output) {
-  if (code_point <= 0x7f) {
-    // Fast path the common case of one byte.
-    output->push_back(static_cast<char>(code_point));
-    return 1;
-  }
-
-
-  // CBU8_APPEND_UNSAFE can append up to 4 bytes.
-  size_t char_offset = output->length();
-  size_t original_char_offset = char_offset;
-  output->resize(char_offset + CBU8_MAX_LENGTH);
-
-  CBU8_APPEND_UNSAFE(&(*output)[0], char_offset, code_point);
-
-  // CBU8_APPEND_UNSAFE will advance our pointer past the inserted character, so
-  // it will represent the new length of the string.
-  output->resize(char_offset);
-  return char_offset - original_char_offset;
-}
-
-size_t WriteUnicodeCharacter(uint32_t code_point, string16* output) {
-  if (CBU16_LENGTH(code_point) == 1) {
-    // Thie code point is in the Basic Multilingual Plane (BMP).
-    output->push_back(static_cast<char16>(code_point));
-    return 1;
-  }
-  // Non-BMP characters use a double-character encoding.
-  size_t char_offset = output->length();
-  output->resize(char_offset + CBU16_MAX_LENGTH);
-  CBU16_APPEND_UNSAFE(&(*output)[0], char_offset, code_point);
-  return CBU16_MAX_LENGTH;
-}
-
-// Generalized Unicode converter -----------------------------------------------
-
-template<typename CHAR>
-void PrepareForUTF8Output(const CHAR* src,
-                          size_t src_len,
-                          std::string* output) {
-  output->clear();
-  if (src_len == 0)
-    return;
-  if (src[0] < 0x80) {
-    // Assume that the entire input will be ASCII.
-    output->reserve(src_len);
-  } else {
-    // Assume that the entire input is non-ASCII and will have 3 bytes per char.
-    output->reserve(src_len * 3);
-  }
-}
-
-// Instantiate versions we know callers will need.
-template void PrepareForUTF8Output(const wchar_t*, size_t, std::string*);
-template void PrepareForUTF8Output(const char16*, size_t, std::string*);
-
-template<typename STRING>
-void PrepareForUTF16Or32Output(const char* src,
-                               size_t src_len,
-                               STRING* output) {
-  output->clear();
-  if (src_len == 0)
-    return;
-  if (static_cast<unsigned char>(src[0]) < 0x80) {
-    // Assume the input is all ASCII, which means 1:1 correspondence.
-    output->reserve(src_len);
-  } else {
-    // Otherwise assume that the UTF-8 sequences will have 2 bytes for each
-    // character.
-    output->reserve(src_len / 2);
-  }
-}
-
-// Instantiate versions we know callers will need.
-template void PrepareForUTF16Or32Output(const char*, size_t, std::wstring*);
-template void PrepareForUTF16Or32Output(const char*, size_t, string16*);
-
-}  // namespace base
diff --git a/security/sandbox/chromium/base/strings/utf_string_conversion_utils.h b/security/sandbox/chromium/base/strings/utf_string_conversion_utils.h
deleted file mode 100644
index c71640453..000000000
--- a/security/sandbox/chromium/base/strings/utf_string_conversion_utils.h
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BASE_STRINGS_UTF_STRING_CONVERSION_UTILS_H_
-#define BASE_STRINGS_UTF_STRING_CONVERSION_UTILS_H_
-
-// This should only be used by the various UTF string conversion files.
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include "base/base_export.h"
-#include "base/strings/string16.h"
-
-namespace base {
-
-inline bool IsValidCodepoint(uint32_t code_point) {
-  // Excludes the surrogate code points ([0xD800, 0xDFFF]) and
-  // codepoints larger than 0x10FFFF (the highest codepoint allowed).
-  // Non-characters and unassigned codepoints are allowed.
-  return code_point < 0xD800u ||
-         (code_point >= 0xE000u && code_point <= 0x10FFFFu);
-}
-
-inline bool IsValidCharacter(uint32_t code_point) {
-  // Excludes non-characters (U+FDD0..U+FDEF, and all codepoints ending in
-  // 0xFFFE or 0xFFFF) from the set of valid code points.
-  return code_point < 0xD800u || (code_point >= 0xE000u &&
-      code_point < 0xFDD0u) || (code_point > 0xFDEFu &&
-      code_point <= 0x10FFFFu && (code_point & 0xFFFEu) != 0xFFFEu);
-}
-
-// ReadUnicodeCharacter --------------------------------------------------------
-
-// Reads a UTF-8 stream, placing the next code point into the given output
-// |*code_point|. |src| represents the entire string to read, and |*char_index|
-// is the character offset within the string to start reading at. |*char_index|
-// will be updated to index the last character read, such that incrementing it
-// (as in a for loop) will take the reader to the next character.
-//
-// Returns true on success. On false, |*code_point| will be invalid.
-BASE_EXPORT bool ReadUnicodeCharacter(const char* src,
-                                      int32_t src_len,
-                                      int32_t* char_index,
-                                      uint32_t* code_point_out);
-
-// Reads a UTF-16 character. The usage is the same as the 8-bit version above.
-BASE_EXPORT bool ReadUnicodeCharacter(const char16* src,
-                                      int32_t src_len,
-                                      int32_t* char_index,
-                                      uint32_t* code_point);
-
-#if defined(WCHAR_T_IS_UTF32)
-// Reads UTF-32 character. The usage is the same as the 8-bit version above.
-BASE_EXPORT bool ReadUnicodeCharacter(const wchar_t* src,
-                                      int32_t src_len,
-                                      int32_t* char_index,
-                                      uint32_t* code_point);
-#endif  // defined(WCHAR_T_IS_UTF32)
-
-// WriteUnicodeCharacter -------------------------------------------------------
-
-// Appends a UTF-8 character to the given 8-bit string.  Returns the number of
-// bytes written.
-BASE_EXPORT size_t WriteUnicodeCharacter(uint32_t code_point,
-                                         std::string* output);
-
-// Appends the given code point as a UTF-16 character to the given 16-bit
-// string.  Returns the number of 16-bit values written.
-BASE_EXPORT size_t WriteUnicodeCharacter(uint32_t code_point, string16* output);
-
-#if defined(WCHAR_T_IS_UTF32)
-// Appends the given UTF-32 character to the given 32-bit string.  Returns the
-// number of 32-bit values written.
-inline size_t WriteUnicodeCharacter(uint32_t code_point, std::wstring* output) {
-  // This is the easy case, just append the character.
-  output->push_back(code_point);
-  return 1;
-}
-#endif  // defined(WCHAR_T_IS_UTF32)
-
-// Generalized Unicode converter -----------------------------------------------
-
-// Guesses the length of the output in UTF-8 in bytes, clears that output
-// string, and reserves that amount of space.  We assume that the input
-// character types are unsigned, which will be true for UTF-16 and -32 on our
-// systems.
-template<typename CHAR>
-void PrepareForUTF8Output(const CHAR* src, size_t src_len, std::string* output);
-
-// Prepares an output buffer (containing either UTF-16 or -32 data) given some
-// UTF-8 input that will be converted to it.  See PrepareForUTF8Output().
-template<typename STRING>
-void PrepareForUTF16Or32Output(const char* src, size_t src_len, STRING* output);
-
-}  // namespace base
-
-#endif  // BASE_STRINGS_UTF_STRING_CONVERSION_UTILS_H_
diff --git a/security/sandbox/chromium/base/strings/utf_string_conversions.cc b/security/sandbox/chromium/base/strings/utf_string_conversions.cc
deleted file mode 100644
index 6b17eacd6..000000000
--- a/security/sandbox/chromium/base/strings/utf_string_conversions.cc
+++ /dev/null
@@ -1,231 +0,0 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/strings/utf_string_conversions.h"
-
-#include <stdint.h>
-
-#include "base/strings/string_piece.h"
-#include "base/strings/string_util.h"
-#include "base/strings/utf_string_conversion_utils.h"
-#include "build/build_config.h"
-
-namespace base {
-
-namespace {
-
-// Generalized Unicode converter -----------------------------------------------
-
-// Converts the given source Unicode character type to the given destination
-// Unicode character type as a STL string. The given input buffer and size
-// determine the source, and the given output STL string will be replaced by
-// the result.
-template<typename SRC_CHAR, typename DEST_STRING>
-bool ConvertUnicode(const SRC_CHAR* src,
-                    size_t src_len,
-                    DEST_STRING* output) {
-  // ICU requires 32-bit numbers.
-  bool success = true;
-  int32_t src_len32 = static_cast<int32_t>(src_len);
-  for (int32_t i = 0; i < src_len32; i++) {
-    uint32_t code_point;
-    if (ReadUnicodeCharacter(src, src_len32, &i, &code_point)) {
-      WriteUnicodeCharacter(code_point, output);
-    } else {
-      WriteUnicodeCharacter(0xFFFD, output);
-      success = false;
-    }
-  }
-
-  return success;
-}
-
-}  // namespace
-
-// UTF-8 <-> Wide --------------------------------------------------------------
-
-bool WideToUTF8(const wchar_t* src, size_t src_len, std::string* output) {
-  if (IsStringASCII(std::wstring(src, src_len))) {
-    output->assign(src, src + src_len);
-    return true;
-  } else {
-    PrepareForUTF8Output(src, src_len, output);
-    return ConvertUnicode(src, src_len, output);
-  }
-}
-
-std::string WideToUTF8(const std::wstring& wide) {
-  if (IsStringASCII(wide)) {
-    return std::string(wide.data(), wide.data() + wide.length());
-  }
-
-  std::string ret;
-  PrepareForUTF8Output(wide.data(), wide.length(), &ret);
-  ConvertUnicode(wide.data(), wide.length(), &ret);
-  return ret;
-}
-
-bool UTF8ToWide(const char* src, size_t src_len, std::wstring* output) {
-  if (IsStringASCII(StringPiece(src, src_len))) {
-    output->assign(src, src + src_len);
-    return true;
-  } else {
-    PrepareForUTF16Or32Output(src, src_len, output);
-    return ConvertUnicode(src, src_len, output);
-  }
-}
-
-std::wstring UTF8ToWide(StringPiece utf8) {
-  if (IsStringASCII(utf8)) {
-    return std::wstring(utf8.begin(), utf8.end());
-  }
-
-  std::wstring ret;
-  PrepareForUTF16Or32Output(utf8.data(), utf8.length(), &ret);
-  ConvertUnicode(utf8.data(), utf8.length(), &ret);
-  return ret;
-}
-
-// UTF-16 <-> Wide -------------------------------------------------------------
-
-#if defined(WCHAR_T_IS_UTF16)
-
-// When wide == UTF-16, then conversions are a NOP.
-bool WideToUTF16(const wchar_t* src, size_t src_len, string16* output) {
-  output->assign(src, src_len);
-  return true;
-}
-
-string16 WideToUTF16(const std::wstring& wide) {
-  return wide;
-}
-
-bool UTF16ToWide(const char16* src, size_t src_len, std::wstring* output) {
-  output->assign(src, src_len);
-  return true;
-}
-
-std::wstring UTF16ToWide(const string16& utf16) {
-  return utf16;
-}
-
-#elif defined(WCHAR_T_IS_UTF32)
-
-bool WideToUTF16(const wchar_t* src, size_t src_len, string16* output) {
-  output->clear();
-  // Assume that normally we won't have any non-BMP characters so the counts
-  // will be the same.
-  output->reserve(src_len);
-  return ConvertUnicode(src, src_len, output);
-}
-
-string16 WideToUTF16(const std::wstring& wide) {
-  string16 ret;
-  WideToUTF16(wide.data(), wide.length(), &ret);
-  return ret;
-}
-
-bool UTF16ToWide(const char16* src, size_t src_len, std::wstring* output) {
-  output->clear();
-  // Assume that normally we won't have any non-BMP characters so the counts
-  // will be the same.
-  output->reserve(src_len);
-  return ConvertUnicode(src, src_len, output);
-}
-
-std::wstring UTF16ToWide(const string16& utf16) {
-  std::wstring ret;
-  UTF16ToWide(utf16.data(), utf16.length(), &ret);
-  return ret;
-}
-
-#endif  // defined(WCHAR_T_IS_UTF32)
-
-// UTF16 <-> UTF8 --------------------------------------------------------------
-
-#if defined(WCHAR_T_IS_UTF32)
-
-bool UTF8ToUTF16(const char* src, size_t src_len, string16* output) {
-  if (IsStringASCII(StringPiece(src, src_len))) {
-    output->assign(src, src + src_len);
-    return true;
-  } else {
-    PrepareForUTF16Or32Output(src, src_len, output);
-    return ConvertUnicode(src, src_len, output);
-  }
-}
-
-string16 UTF8ToUTF16(StringPiece utf8) {
-  if (IsStringASCII(utf8)) {
-    return string16(utf8.begin(), utf8.end());
-  }
-
-  string16 ret;
-  PrepareForUTF16Or32Output(utf8.data(), utf8.length(), &ret);
-  // Ignore the success flag of this call, it will do the best it can for
-  // invalid input, which is what we want here.
-  ConvertUnicode(utf8.data(), utf8.length(), &ret);
-  return ret;
-}
-
-bool UTF16ToUTF8(const char16* src, size_t src_len, std::string* output) {
-  if (IsStringASCII(StringPiece16(src, src_len))) {
-    output->assign(src, src + src_len);
-    return true;
-  } else {
-    PrepareForUTF8Output(src, src_len, output);
-    return ConvertUnicode(src, src_len, output);
-  }
-}
-
-std::string UTF16ToUTF8(StringPiece16 utf16) {
-  if (IsStringASCII(utf16)) {
-    return std::string(utf16.begin(), utf16.end());
-  }
-
-  std::string ret;
-  // Ignore the success flag of this call, it will do the best it can for
-  // invalid input, which is what we want here.
-  UTF16ToUTF8(utf16.data(), utf16.length(), &ret);
-  return ret;
-}
-
-#elif defined(WCHAR_T_IS_UTF16)
-// Easy case since we can use the "wide" versions we already wrote above.
-
-bool UTF8ToUTF16(const char* src, size_t src_len, string16* output) {
-  return UTF8ToWide(src, src_len, output);
-}
-
-string16 UTF8ToUTF16(StringPiece utf8) {
-  return UTF8ToWide(utf8);
-}
-
-bool UTF16ToUTF8(const char16* src, size_t src_len, std::string* output) {
-  return WideToUTF8(src, src_len, output);
-}
-
-std::string UTF16ToUTF8(StringPiece16 utf16) {
-  if (IsStringASCII(utf16))
-    return std::string(utf16.data(), utf16.data() + utf16.length());
-
-  std::string ret;
-  PrepareForUTF8Output(utf16.data(), utf16.length(), &ret);
-  ConvertUnicode(utf16.data(), utf16.length(), &ret);
-  return ret;
-}
-
-#endif
-
-string16 ASCIIToUTF16(StringPiece ascii) {
-  DCHECK(IsStringASCII(ascii)) << ascii;
-  return string16(ascii.begin(), ascii.end());
-}
-
-std::string UTF16ToASCII(StringPiece16 utf16) {
-  DCHECK(IsStringASCII(utf16)) << UTF16ToUTF8(utf16);
-  return std::string(utf16.begin(), utf16.end());
-}
-
-}  // namespace base
diff --git a/security/sandbox/chromium/base/strings/utf_string_conversions.h b/security/sandbox/chromium/base/strings/utf_string_conversions.h
deleted file mode 100644
index 2995f4cbc..000000000
--- a/security/sandbox/chromium/base/strings/utf_string_conversions.h
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BASE_STRINGS_UTF_STRING_CONVERSIONS_H_
-#define BASE_STRINGS_UTF_STRING_CONVERSIONS_H_
-
-#include <stddef.h>
-
-#include <string>
-
-#include "base/base_export.h"
-#include "base/strings/string16.h"
-#include "base/strings/string_piece.h"
-
-namespace base {
-
-// These convert between UTF-8, -16, and -32 strings. They are potentially slow,
-// so avoid unnecessary conversions. The low-level versions return a boolean
-// indicating whether the conversion was 100% valid. In this case, it will still
-// do the best it can and put the result in the output buffer. The versions that
-// return strings ignore this error and just return the best conversion
-// possible.
-BASE_EXPORT bool WideToUTF8(const wchar_t* src, size_t src_len,
-                            std::string* output);
-BASE_EXPORT std::string WideToUTF8(const std::wstring& wide);
-BASE_EXPORT bool UTF8ToWide(const char* src, size_t src_len,
-                            std::wstring* output);
-BASE_EXPORT std::wstring UTF8ToWide(StringPiece utf8);
-
-BASE_EXPORT bool WideToUTF16(const wchar_t* src, size_t src_len,
-                             string16* output);
-BASE_EXPORT string16 WideToUTF16(const std::wstring& wide);
-BASE_EXPORT bool UTF16ToWide(const char16* src, size_t src_len,
-                             std::wstring* output);
-BASE_EXPORT std::wstring UTF16ToWide(const string16& utf16);
-
-BASE_EXPORT bool UTF8ToUTF16(const char* src, size_t src_len, string16* output);
-BASE_EXPORT string16 UTF8ToUTF16(StringPiece utf8);
-BASE_EXPORT bool UTF16ToUTF8(const char16* src, size_t src_len,
-                             std::string* output);
-BASE_EXPORT std::string UTF16ToUTF8(StringPiece16 utf16);
-
-// This converts an ASCII string, typically a hardcoded constant, to a UTF16
-// string.
-BASE_EXPORT string16 ASCIIToUTF16(StringPiece ascii);
-
-// Converts to 7-bit ASCII by truncating. The result must be known to be ASCII
-// beforehand.
-BASE_EXPORT std::string UTF16ToASCII(StringPiece16 utf16);
-
-}  // namespace base
-
-#endif  // BASE_STRINGS_UTF_STRING_CONVERSIONS_H_